I've been trading for a few years. Got into stocks, did okay for awhile, then lost money and closed the account. Made a little bit through stocks to open an account to trade futures, did well, then blew everything. I'm only 18, going off to college next year, but I'd like to be able to trade there. I was thinking about going with a prop firm for the summer. Any ideas or suggestions on who to go with or what to do? Basically, I need to learn to trade not using my own money.