Trading full time is different. You need solid capital because with that capital you can make profits. So how much do you need? Depends from trader, but 10,000$ is a minimum in my opinion. Optimal amount for start is in range 10,000 – 50,000$. The amount is strongly connected to your trading system how you handle risk level, do you trade short term or long term, and many other things Remember that you need capital for start because you must follow some risk ratio rules.