Stop trying to make you fit certain schools…find the schools that fit you.
Make sure you are getting all the help you can…here are ideas:
http://talk.collegeconfidential.com/high-school-life/2026961-what-to-do-when-you-arent-doing-well-in-a-hs-class-p1.html
Keep in mind if you keep doing better in harder classes then Admissions will know you are capable of doing college work.