Listen to these guys. I started same way. Do your best at every school you attend, leave every option open. Go back to your squadron and volunteer to fly everything and anything. Be #1 on your squadron scheduler speed dial for last minute dropouts. In 2 years you'll be a AC and 2 years later competitive for majors. Skip regionals and keep a small nest egg when $ goes dry (like it does every year). It never lasts too long so don't panic and go get job like everyone else. As usual, a month later $ returns and then your only show in town available to bum.
Enjoy bumming. SERIOUSLY! Now that I'm at the majors, I can honestly say it was the best years of my life. When else can you just leave for 4 week vacation without having to ask anyone and/or just have any day you choose off. I never missed any important life event, unlike now.