It's natural to have it because it's in the trade you need to do. but if you hold it there is a good lesson will not happen again, but if you are in bitcoin you have to keep earning faster and as long as you do not lose money, do not regret losing profit Better to be safe from regret.
I think retention is the best strategy for any token. After all, if you start to panic and sell everything, then you will probably also panic when the token begins to grow.
One of the things that we have to do is to control our emotion, let our mind play the game because if we do that, we have a chance to achieve better
results. When we panic, that would easily mean we lose in the game, if you do not believe in long term, then you should not invest in crypto.