That is something that is natural mate, because we must experience it.
The fault with us is that our expectations are too high with the token we hold, when it is at its peak we don't want to sell it, instead we want to continue to hold it so that it drops to the lowest price and regrets it.
Sometimes I even don't care about the price of tokens if it's my work pay, as long as I have the necessities of life I have to sell them whatever I can.
If you talk about the necessities, I think It's priority.
We should sell whatever the price.
invest in crypto needs cold money.
But we must do daily trading and hold for short term, medium and long term.
To fulfill your needs, I think You can do daily trading.
Investing is asset for the future.
I also ever sold more than I earn, because wrong analysis.