In trading we need more knowledge and experience than strategy. Trading has no specific strategy, it is depend on situation and also you, that how you deal with your coins. Only sell your coins in more than your buying price than sure you have no problem to sell your coins and also you get profit, may be little but confirm you get profit. Don't greedy to much, because in this situation, you will miss the chance to sell your coins.
Yeah, the simple trading strategy should be buying low and selling high. Too many people are following this strategy just to be successful in the trading market and they are definitely producing great results following this strategy. Indeed the trading strategy varies with situation to situation.