In my opinion, the best time to sell is when the market price of the coin is 20%+ higher than the market price at which you bought the coin. Dont wait till the market price is 95%+ before you sell. That only happens when you got your eyes glues to your machine 24/7. Dont be greedy... Make a little profit and grow it over time. Cryptomarket is growing and full of terror! Be careful
Really appreciated your strategy but....
20%? Isn't that much higher dude?
It is really very hard to get 20% of the marked value of the coin. And if they will follow these strategies then they will surely make mistakes and losses.
As no coin can rise upto 20% in a short period of time. So they will need to wait.
And while waiting, the value may come down.
So i would suggest always listen to yourself, and invest or sell at your own decisions.