To become a professional trader at first to avoid trading with high risk as well as gambling. This is not a proper way of earning. We have achieve the ability of making profit on daily basis. So I used to trade with low risk because if I get loss with big lot than it will crash my capital of trading. Money management as well as risk management is also a considerable matter to all traders. If he trades with a big lot he will break the rules of these two types of management.