The big difference between AP classes and college classes: TA and professor office hours

Yes, there are many resources to use in college: Professor Office Hours, TA’s, Writing Centers, Tutors, Study Groups. Use them!

Here are more tips:

http://talk.collegeconfidential.com/college-life/1920853-college-is-a-step-up-from-hs-16-tips-on-doing-well-in-college.html