You can manage or find more an understanding about management risk because it is more important when you intend to start become a trader.

It will be useless when you are expert to overcome some strategies but you don't have any strategy how to manage your risk/money cause you will get lose at the end, I'll bet.

Because being a profesional trade it is not about you will get profit from you whole trade because it is impossible. There will be a time your prediction is going wrong, and you need a strategy what will you do next and management risk is the solution when you found this situation.