What happens if you don't use a stop loss?

Let's assume your trading account is worth 10,000 AED and you want to achieve a net profit increase of 300%, which means you would exit the market with 40,000 AED if you're right. If you don't use a stop loss in this case and you're wrong, and the market moves in the opposite direction, you will lose everything you have. Thus, you will only have one chance to make a profit, and if you miss this opportunity, you won't be able to succeed. In this way, your chance of success becomes only 50%, and you cannot increase it because you won't be able to re-enter the market later and correct your mistake.