The best option is to learn the theory and then master your skills in demo versions before starting trading. In my opinion, it’s better to start with a long trade (as it’s less risky) and after getting acquainted with the crypto market, try day trading. You should also find a reliable trading platform because there are a lot of scams. I would suggest you CEX which is perfect for beginners due to the intuitive interface. It supports fiat/crypto trading (https://cex.io/btc-eur) in addition to crypto/crypto pairs which is convenient for newcomers.