If you feel satisfy with your profit, keep go on sell your coin, but if you have one coin, you should choose another coin as your budget, at least 3 coins, it means when one coin down in price, another coin will help your loss if another had green arrow.
Well this is also good this means do not focus only in one coin so you can earn profit in other coin. Even the current market does not look good because it is down hard it's value. Hope price can go back to it's green marks so we can earn.