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
20% profit is enough but what will you do after you withdraw it all ? Is it the end? How about the opportunity lost when the market is still rising?. So i suggest to take that percentage of profit to safety and wait for another 20%. Its like farming. I see that youre referring to a playing safe trader so this method is quite advisable.