There is no such business in the world where you have only profit because with any business there is always risk of loss along with profit. Yes, it is certain that some businesses have a higher risk of loss and some businesses have a lower risk of loss.

But where the risk of loss is high or the rate of loss can be high, the rate of return is also very high. You should never invest total capital in risky business. for example, if you buy meme token, the risk is very high, but if you get the profit, it can also be very high but if you take Bitcoin, here the risk is very low but the profit rate is also low.  Always invest your money in a business that you know about or have experience in then you will not be so afraid of losing your capital.