Day trading is risky if you don't have enough knowledge to it, and you have to monitor always your coins which is you like to trade because every minutes or seconds the price of the coin is increasing or decreasing.
Your knowledge is really important when you are planning to do day trading because the risk is very high and without proper education your money will soon gone. You can really earn money easily in day trading but of course in just a second your money will loose at some point of your trading.