There are 3000 college in the USA. THere is a college for you.
You put some amount of effort into studying and you have seen what grades that got you .I fyou are not happy with that, change what you are doing. 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