Being a pro gamer is all about practicing until you're blue in the face. You don't have to be particularly smart or coordinated to do it.
You'd have to be pretty stupid to go into pro-gaming. To make decent money from it, you have to be the best of the best. Most people practice 5+ hours a day and never see a penny. Also, the game you play will be dead in 5 years, so why bother investing so much of your life into it?