In addition to some of the advice given, beyond technical analysis, you have to remeber that crypto is largely sentiment driven. Good articles, news will pump the price, while negative news will dump the price, more so than the technical analysis will lend itself to.
So, if you want to be a 'day trader' then listen to the drums. That is what will give you a leg up.
As for technical analysis, trend lines have worked the best for me, other than the news, of course. Right now, we are in an accumulation phase, a wedge pattern. BTC floats around 7960, with movements up and down, and ETH, looks a bit perkier, so I am thinking we will see ETH 300 before BTC 9000. I believe the uptrend will continue, as the news are quite good, however, remember that the summer months normally are middling, smaller volumes, less fiat coming in, so the summer months I consider not optimal for trading a long position on an uptick, as the smaller volumes can make shorters have good time by doing dumps.
So, keep in mind that the markets are quite shallow, lack of liquidity, so market manipulators can move prices quite a bit for short time frames at least. So avoid doing futures with large leverages, as that will be no better than gambling.