Which is the same story as always, on paper it is very easy to imagine that if you just buy at the bottom and sell at the top then the profits you can get will be huge, but once you try to put your strategy into practice then things get way more complicated to the point that the perfect strategy that you envisioned crumbles under duress and you are forced once again to think about what you are doing wrong before creating yet another strategy.
Maintaining an Excel sheet for buying points help keep track of those numbers at a glance and then you can plan your selling points without doing too much calculation. Buying low and selling high seeme easy but the tough part is keeping this data and keeping patience in between the cycles in order to keep the profit margins maximized. Exit your positions at a good profit but don't expect profits to come in everyday.
In any type of trading other than spot trading the trader has to take a chance and thus the risk is higher. If you are up for gambling with your money, go for it. But remember that most of the newbie traders get trapped in it unable to make it out.