You know, I decided for myself this way, I will never know when the price will be at its peak, if I made a profit of 30%, I already start fixing.
Of course, it still very much depends on luck, no one knows which cryptocurrency will give x10-100. Usually such projects are in the shade and you find out about them too late.
If there are people who are sure then take risks, just do not risk all the money.
The pain of loss will cause you more suffering, you will be deeply depressed.