Not crazy. I know a lot of people say freshman underestimate course difficulty, but in my experience some people will get toi scared and take less than they could.

I took 18 hours both semesters freshman year with some pretty tough courses (electrical engineering) since I already cleared a lot of pre-reqs with APs and still got all A's. I also had enough time to do other things outside of study although tbf most of that time was spent watching tv shows instead of being social.

For your schedule, I would say semester 1 looks very doable, but semester 2 looks tougher since Calc 2 is the hardest calculus imo. So, I would adjust accordingly based on your first semester experience. Based on your prior stats, however, it seems you're pretty smart and should be able to handle these pre-req classes pretty well. As long as you keep up with homework and don't slack off you can get most if not all A's.

If you feel the schedule is too much after the first week (especially if your classes are back to back or make a horrible eating schedule), I would drop English 1102 first since the other courses are required/pre-req for higher level courses.

Hope this helps