If you don't know anything yet, just learn about the first basics of cryptocurrency, and not focus on the earning that someone can gain from trading. You may only see the success of someone in trading, earning so much money, and being rich because of trading. But you exactly don't know their struggle from starting trading, the loss that they make, and also how serious and heavy they are trading.
I suggest you really understand at first what trading is, the pros and cons, and also the risks of losing that you may get, not only the profits to earn.