I took A&P, Micro and sociology (plus yoga, lol) in one semester and it was difficult for me but I still got good grades. If you had tacked on Chemisty and a world hist and English class I probably would have gone crazy. But I am also a returning student (was 37 years old) so I was trying to wrap my brain around how to do school again. I also have 3 kids. So if you are a recent high school graduate without kids, living at home without bills to worry about, then you might be able to pull it off.