You can have a perfect plan and still blow up, because the weakest part of your system is the person running it. After a few losses in a row, a switch flips. You feel the urge to win it all back right now. That state has a name in trading: tilt, borrowed from poker. On tilt, you take trades you would normally skip, size too big, and abandon the plan just when you need it most.
Tilt is dangerous because it usually shows up during a drawdown, which is a stretch where your account is down from its recent high. Drawdowns are normal and unavoidable. The problem is the math of climbing out. Lose 10% and you need about 11% to get back. Lose 50% and you need a full 100% gain just to break even. The deeper you dig, the steeper the climb, which is exactly why revenge trading turns a small hole into a grave.
The way out is to treat your mental capital as seriously as your money. Mental capital is your focus, your patience, and your discipline. It is a real and limited resource, and it drains faster than your account does. When it runs low, your decisions get worse, so protecting it is not soft advice, it is risk management.
In practice, this means having rules that stop you before tilt does its damage. Set a daily loss limit: if you are down a set amount, you are done for the day, no arguments. Step away from the screen after a hard loss instead of clicking straight into the next trade. The market opens again tomorrow. Your best edge is being calm enough to use your plan, and you cannot do that while you are tilted.
Tilt is the emotional urge to force back losses, and it strikes hardest during a drawdown, when deep losses need outsized gains to recover. Protect your mental capital with hard rules like a daily loss limit, because your discipline runs out before your money does.
Tip. Write your daily loss limit down and honor it like a stop loss on yourself. When you hit it, close the app. Walking away with a small loss intact is a winning decision, even though it does not feel like one.