Statistics, Research Methods, and Biological Bases of Behavior, were the difficult ones for me. I managed to earn nothing less than a B+ in these courses, but I had to work in a different way I wasn't used to, so it was harder for me. Other than that, most of undergraduate school was pretty sweet. The work was still hard, but I really enjoy academia, so it made getting good grades and such a lot easier because I was excited about the learning! When I look back on it though, I don't know how I pulled it off. I worked up to 3 jobs at once while going for my B.A., lived on my own, and got involved in extra academic activities.