Hester,
Take 250K and buy yourself 17 kilo's of cocaine. Cut it about 30%, yielding you 22 kilo's and then sell it all as 8-balls for $150 each. This will gross you $929,280 and net you a profit of $679,280. Who needs stocks??
Alright, all joking aside, my best advice to you is finish your college degree, have fun while you are young enough to enjoy it, go ahead and trade your plan (don't pull capital out of your house if you lose all of your 55K to "re-up"), and most importantly, never get behind the mouse with a buzz (you have enough testosterone without it to get ballsy). The reality is, every trader on this board has lost $$ trading, it is a right of passage and a true education intrading, just don't let the tuition get too high. If you lose a chunk, take time off for a few months if not longer, you'll wisen up when you step away. It's all part of the learning process.
Edit- if you have not read it yet, you can learn alot about successful trading by reading the thread "A 70k bet that I can't make a 50% gain in 2009 " by geez. What you will get from that is the importance of discipline and a plan.