Many retail investors really deserve to be retail investors. If I promote a project, from the moment I start promoting it, if its price keeps going down, then the loss is my fault. If you blame me for taking profits, I accept it.

But if your mindset is so narrow that you limit yourself and end up losing money, that's your own problem. You need to know when to buy and when to sell. Never get stuck in a fixed mindset. In this market, only Bitcoin is worth having a long-term perspective; all other projects are not.
Bitcoin can be cut in half, let alone others. You must know when to sell.