<p>I took Calc 1 and Analytic geometry at a community college between freshman and sophomore year in order to take calculus BC sophomore year. It was a great decision as the college class prepared me more than the class leading up to BC at my school (my school does some ridiculous integrated math track). I got all As and believe I got a 5 on the exam, if you are looking to master the material in a rather short period of time (2-3 months) then I would recommend that you get the text book you will be using next year and self teach yourself one section a day. If you are struggling with a concept or whatever you can always refer to Khan or PatrickJMT on Youtube. Once you have finished the book I would begin to look at old AP FRQs on the college board website and doing them, the more you do the better prepared you are for the exam. I would also recommend getting a review book (I used Princeton Review) and doing some of the practice exams in the back (If your scores in these are awful, it is ok, they are purposefully made much harder than the actual exam). Hope this helps! Let me know how this works!</p>