Three Months of Profit, Then Collapse in Month Four: Causes and Prevention

If you've ever made consistent profits for the first 2–3 months trading Forex, only to suffer heavy losses in month four that wiped out all your accumulated gains, you're not alone. This phenomenon happens to many traders, and it's not a coincidence. This article examines the real reasons why short-term success becomes the starting point of failure, and more importantly, how to prevent this from happening again.

The Most Common Pattern: Three Months of Profit, One Month of Collapse

Statistical data from thousands of traders on Thaifxbook shows that approximately 40% of traders who make profits for three consecutive months will encounter a fourth month of heavy losses. The size of the damage is typically 2–3 times larger than the average monthly profit they achieved, bringing the total back to negative or nearly break-even.

For example, a trader makes 5–7% profit per month for three consecutive months, totalling approximately 18%. But in month four, they lose 15–20% in a single month, wiping out nearly all the hard work from three months. This phenomenon doesn't happen by bad luck—it happens for clear and preventable reasons.

Primary Cause 1: Overconfidence After Consecutive Wins

When you make profits for three consecutive months, your brain starts producing more dopamine, making you feel more skilled, your trading system more accurate, and leading you to believe the market has become easier to predict. This is the beginning of overconfidence bias that leads to risky behaviour.

Changed behaviours typically include: increasing lot size because you think you'll make more profit, reducing stop loss distance because you think your predictions are more accurate, increasing the number of orders per day because you think you see more opportunities, or trading currency pairs you've never traded because you think your skills are good enough. These small changes accumulate into significantly increased risk.

Prevention: Set an iron rule that you must not increase lot size or change trading rules after consecutive wins. If you want to increase order size, you must wait at least 6 months with consistent profits, and increase gradually by no more than 20% at a time. Crucially, you must keep a daily trading journal to monitor whether your behaviour has changed.

Primary Cause 2: Early Luck, Not Real Skill

Often, profits in the first three months don't come from a genuinely good trading system, but from luck where the market moved in a direction that aligned with your trading style. For example, the market had a clear trend during that period and you trade trend following, or the market was ranging during that period and you trade range trading.

The problem is when market conditions change, the system that used to work stops working. But traders continue trading the same way because they still think the system is good, until they suffer heavy losses before realising. This is the difference between luck and skill that traders must distinguish.

Prevention: Use Monte Carlo simulation to test your trading system against different market conditions to see if the system can survive in all conditions. And you must monitor the equity curve carefully. If you see the graph rising too linearly in the first three months, it may be a warning sign that you're lucky rather than genuinely skilled.

Primary Cause 3: No Clear Drawdown Management

Most traders who make profits in the first three months won't have prepared a plan to deal with drawdown periods at all, because they think it won't happen, or if it does, it won't be severe. But the reality is drawdown is normal and can happen to any system, even the best ones.

When they start encountering 2–3 consecutive losing orders in month four, traders begin to panic and try to "get the profit back" by increasing risk, opening orders more frequently, or using Martingale, which causes increasingly heavy losses until they lose control.

Prevention: Set a rule for maximum acceptable drawdown before you start trading at all. For example, if you lose 10% of your portfolio, you must stop trading for one week and review your system. If you lose 15%, you must reduce lot size by 50% immediately. And if you lose 20%, you must stop trading entirely and start over with a demo account first. These rules must be written in your trading plan and followed strictly. See more at When Drawdown Exceeds 30%.

Primary Cause 4: Neglecting Important Statistics

Many traders only look at total profit in each month, but don't examine other important statistics in depth, such as profit factor, win rate, average win/loss, or maximum consecutive losses.

If you examine these statistics carefully, you'll see warning signs before the real collapse. For example, profit factor declining from 2.0 to 1.3 over the first three months, or average loss growing steadily even though you're still making overall profit, or consecutive losses increasing from 3 times to 5 times. These signals indicate the system is deteriorating, but there's still profit because of luck on some large orders.

Prevention: Use a platform like Thaifxbook that captures all statistics, and check statistics every week, not just profit. Pay special attention to expectancy, Sharpe ratio, and recovery factor. If these numbers start deteriorating, even though you're still making profit, reduce risk immediately.

Primary Cause 5: Adding Capital at the Wrong Time

After making profits for three months, many people decide to transfer more money into their trading account, thinking it's time to make more profit. But this becomes the starting point of problems, because when capital increases, psychological pressure increases accordingly. And when you encounter losses, the amount of money lost is also greater, making psychological drawdown easier to occur.

Additionally, adding capital means you must trade with larger lot sizes, which makes you feel more pressure when making decisions. The result is decisions may deviate from the original plan, such as cutting losses too quickly or not letting profits run fully because you're afraid the profit will disappear.

Prevention: Set a rule that you must not add capital before six months, no matter how well you're making profit. And when it's time to add capital, add gradually, no more than 30% at a time, and give yourself time to adjust to the new capital for at least one month before adding more. Adding capital gradually helps your psychology adjust better than jumping up all at once.

A Practical Prevention Plan: The 4-Point Check System

To prevent month four from becoming a month of disaster, do a 4-Point Check every week from month two onwards:

1. Check behaviour: Ask yourself "Am I opening orders more frequently?", "Am I using the same lot size?", "Am I trading according to the original plan?" If the answer is "no", adjust back immediately.
2. Check statistics: Look at profit factor, win rate, average win/loss, expectancy to see if they're stable or deteriorating. If deteriorating, reduce risk by 30% immediately.
3. Check emotions: Assess whether you're feeling overconfident. If you feel "I've become skilled" or "the market has become easier to predict", be careful. That's a sign of overconfidence.
4. Check drawdown plan: Ask yourself "If I lose 15% next month, what will I do?" If you can't answer clearly, you're not ready.

Lessons from Professional Traders

Professional traders who succeed long-term don't get overly excited when they make profits for three months, because they know that doesn't prove anything yet. They view the first 3–6 months as a system testing period, not a celebration period. And they become more cautious in months 4–6, not more relaxed.

The important principle they use is "When you're making good profit, be more cautious, not bolder". They become stricter about following the plan, check statistics more frequently, and are ready to reduce risk immediately when they see warning signs. See more at How Professional Traders Analyse Profit Factor and Win Rate Together.

Summary: Prevention Is Better Than Cure

Making profits for three consecutive months is a good start, but it's also the most dangerous point, because this is when overconfidence begins to creep in and behaviour starts changing without realising. The best prevention is having clear iron rules, checking statistics regularly, and crucially, being honest with yourself about whether the profit came from real skill or just luck.

Remember that sustainable trading isn't measured by three months of profit, but by how long you can maintain that profit and how you get through drawdown periods. If you can get through months 4–6 whilst still making profit or losing no more than 5%, you'll have proved yourself to be a trader with real potential, not just someone who got lucky temporarily.

Use Thaifxbook to track your trading statistics every day to see warning signs before it's too late. Having complete and transparent data will help you make better decisions and prevent short-term success from becoming long-term failure.