/sci/ - Science & Math

Hey /sci/
I'm a first year chemistry student, and I realized that I'm a little behind from not preparing correctly for a science program (I wanted to be a musician, decided it wasn't for me at last minute).
Anyway, I'm considering taking o-chem over the summer, the whole year in 12 weeks.
I'm wondering if anyone has experience with something like this. Is it a good idea?
Because for some reason people on /sci/ care about this, I'm very bright, I'm just worried about it being too much too fast, especially because I want to know the information being covered, because it's in my major.