If you always buy and it drops, sell and it rises

Your mentality often explodes

Then why not try the following method:

When you want to chase the high to enter, assume you already have this coin in hand

At this point, would you sell?

If you already want to sell, then why chase the high?

Conversely, when you want to cut your losses and leave, assume you don't have this coin

At this point, would you buy the dip?

If you would, then is there still a need to cut your losses?