picking classes?

<p>The deadline for picking classes in myUM is july 8, now i don't think i'm going to take that long, but is it bad if i don't pick them right away? Do the other freshmen who submit the course preferences first get first pick or do they do they start doing the schedule for everybody after the deadline? Also, I plan to double major in neurobio./anthro. and for this semester I'm taking 15 credits, is that not enough, or should I take an extra class? I know the advisers will help but in my school they don't really push you they have this " take it easy, don't worry, you're doing enough" attitude, are the advisers in UM like that?</p>