When are you fllying?
I was actually talking to a friend about the tampa airport yesterday, she told me she flew out of it 4 times this year with just her unexpired passport from chile which doesnt have a visa stamp.
( she kept having to go back and forth to Wa for the whole DL thing) she said the first time she was sooo scared but later she noticed they didnt even look at it too much.
you should be fine! like many others have said on here before, just have your passport open to the right page when you go through the TSA check point so it avoids them having to flip through pages. dress nice ( appearence does help!), dont be nervous and flash that TSA agent a nice smile.
Good Luck with school! & please tell us how everything went for you ( =