I am currently a junior in high school and enrolled at the university in the town where i reside. This summer i am taking spanish 2 and calc 2. In the fall i am taking calc3 ,microbiology, physics 1, and spanish3. I have already taken college algebra, precalc, U.S history, AP credit for U.S govt and English lang. Composition. I am currently taking span1, chem2, calc1, and economics. I will make A's in all of these classes if i keep staying on track. I have a 3.9 GPA in high school and a 3.5 at the university. How hard is microbiology? Would it be a great idea while still in high school? Will my 3.5 university GPA hurt me? ( i want to apply to Ivy League). Will taking these classes hurt me if i make all B's and not any A's?