I don't think it can be your full time job or at least I don't think you can treat it like this and keep your nervous system intact for too long. It brought me tons of stress when I used to do it before the recent bubble. Treat it like a way to gain capital for investing into other more low volatile businesses.

If you want to trade, why don't you start a crypto exchange service IRL. Make a website and sell BTC and other currencies to people for fiat money. Lots of people need a way to turn their BTC to fiat too, so you can buy their BTC and alts for a lower than market price and make steadier and safer profits than with daytrading.