The question I am constantly facing is, how do you know when you should (or have to) sell? When the price is rising, I don't want to sell because... greed tbh. But again when the price is dropping, I don't wanna sell either... sometimes the price might be lower than when I bought. In general, I am bullish that the price will eventually rise and I will make a killing, so no need to hurry. But again, I don't want to be a hodler; I want to be a trader. How do you guys know when to sell?
Naively (but it is true), when you hear many people around you talking about something like: "Buying it now or you will lose your change to become a milliionaire", "That one is a very potential coin/token, you should not miss it", etc. It is the very good time to think of selling and taking profit for your portfolio.
Most of people buying because of motivated noisy environment around, will end with stuck on peaks or all time highs. Being neutrally when you fall into such period and determinantly make your sell orders.