Trading cryptocurrency is easier then most people think.
Here are a few methods:
Shorting -leveraging on the price that it will drop in the near future - Bitmex is the best for this
Swing trading- this is hodling for a few days or week then trading back into another currency
Daytrading - probably the hardest, is using tools like bollinger bands and stochastics along with the moving averages and trade signals to get in and out of the market like a sniper.