Hi

I have a couple of questions...
Let's say that my schedule for the spring semester was looking something like:
7.013
5.12
18.03
8.02
Would that be advisable? Originally, I had planned on taking a HASS instead of 5.12, but apparently as a premed, taking 5.12 is highly encouraged next semester due to scheduling issues and MCAT concerns? I don't really want to push bio, because it would mess up my plans for sophomore year fall, and 18.03 I just want to get over with, especially when the rest of my friends are taking it (pset buddies, yes please). I'm scared about 18.03 and 5.12. 5.12 I know I can probably handle if I put in the time and effort, but I'm terrible at math even though I find it really interesting. How hard would this course load potentially be?
I was looking at the course evaluations for 7.013, why are the scores so low, especially for fair grading?
And on a final note, if I were to accept sophomore standing... what would be the benefits of having an advisor in course 9 early? That seems to be the only reason I would accept it. Heavens know I'm not planning on adding a fifty HASS...
Thanks very much in advance