You sell something and later down the road, that goes multifold.
How do you deal with such things in positive way?
I get used to trade on future trading because I can see or even I can count how many profit that I got directly, different with spot trading which I should count first to know how much profit that I got.
As for your concern, actually I use money that I can afford to lose and never take a decision to choose high leverage. So, when I trade I'll be comfortable in any situation, include honestly I never sell if my target haven't been achieved, it means I never sell early as you asking.
Because I'll have a stop lose feature that can keep my capital getting liquated. These things always give me a good return, yeah I'll compare when the first time I came to trade, selling coin when I bought a coin in five minutes or less it is often to happen, but now I have realized it.