I believe that whenever I make a decision to sell, I won't overthink my decision, whether the crypto goes 10x from there or 1/10th. Also, not to sell all or buy all in one trade.
Lol, I bought my btc at 800$ and sold them at 5000$. And couldn't invest back till it was peaked at 19k in 2017.
Then, when it was going down, I bought again and lost a lot of my gains. But at that time, I was new to the investing/trading game.
I don't invest/trade with 100% capital now. I keep some of it invested. And whenever it increases, I take out a little bit.
Then whenever I have money and it is down a little bit, I buy some.
Maybe super smart people know when to sell. The exact moment. I don't know. I am just happy to sell at profit😅