What was the amount with which you started trading
I mean your very basic investment and was that your extra money or required money?
There have no limit or required money for start trade so you can start trade any ammount but i advised to you start minimum100$ eth or btc.Trading is the most important for cypto world and get money from it so first try to demo trade and also focus market strategy.When you understand that you are able to trade and this time selcet your token or pair like as eth to usd or btc usd or any token to eth or btc.