Now you know what it is, but you need to know that day trading is not easy for most of the people. I advise you first to get into the usual trading or long term trading as we call it, just to feel the whole thing. After you get some experience you could do this one too if you like it.
I believe that with a market that is so volatile and difficult to predict today's trade is the best choice at the moment, you can see that bitcoin prices are constantly fluctuating. The days pass and will be able to continue to fall deeper. Therefore, short-term trading will reduce the risk of bitcoin price volatility.