The question is, have you been into trading before? Or have you been practicing how to trade before? If not, then you can start with the $20, which you are likely to totally lose in one of your trades since you are still starting. I am not saying this to discourage you, but in trading, you will definitely encounter losses. But since you are starting with a little amount, it will encourage you to practice risk and financial management because if, as a beginner, you are starting with, let's say, $1000, if by the time you carry out like five or ten trades and in those trades you have lost $200, you will not feel much affected because you will think that after all, you still have $800 and that you will definitely trade and make the profit to cover up your loss, but since you are starting with just a little amount, you will feel much concerned about when to trade, and you will not really want to take the risk of trading when it's not so favorable because you are scared of losing just the small capital you had. But honestly, trading is not a sustainable source of income for a beginner; get some job or skill to do and use trading as a side hustle until you are perfect in trading and realize that you are making much profit every day before you can seriously base all your attention on trading. Just my opinion