There is no better way of what you gonna choose the long term or the short term both is at risk, you had to be watchful at the market price, if it is down then hold then if it is rise exchange it thats what we call manage system of the price..
Both of the strategies work if you are a wise trader and have enough experience and skills. meanwhile, I prefer to deal with long-term trading for only one reason: I am a very busy person and have to pay attention to my main job as well.