Aside from basic fundamentals of trading, and other things you should study.

You need to control yourself, especially when entering a trade after you lose a trade. Don't rush yourself making a big profit, keep it at a steady phase, don't expect too much from yourself since you've just started your trading journey. It's important also to don't quit if you really want trading as your source of income. Don't afraid to try new things, that'll help you grow as a trader and a person.