The first thing you need to do is to have coins in order to trade. You should hold a good amount of them and have a diverse holding because, that way, you trade many different coins, plus you can also trade aggressively if need be. On the other hand, you also have to choose a good trading platform or site; you should keep in mind that every trade transaction is paid, so you have to have enough to carry your trades. Another one is patience and nerves of steel, you need those because anything can happen, and if you would be soft, especially after losses, you can't prosper in the trading market.