<p>Your course loads seems about right, a very well rounded load, with sciences, arts and social sciences in the mix. I would recommend doing your SAT first and see what you get, you would probably do well haha :P. Well one thing you could do is maybe do some volunteer work at an orphanage or old folks home and maybe participate in some sort of team sport as well 
With all of this added to your already impressive resume i dont see how you could not get in. Good luck, oh and btw what kind of tutor are you looking for? please PM me thanks.</p>