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
Well its good to have this mindset but whether we like it or not, most traders would want to have higher profits and 20%+ price wouldnt be good for them even for me. Besides, I dont think its being greedy, I think it is more of being patiently waiting the right time to trade.