Take nothing but math & science courses your first semester or two. The subjectivity of english teachers can be maddening.
Randomly read your Bible while waiting for classes, and see if it attracts the attention of nearby believers who can become your friends.
You CAN get As in all your classes.
If it's a large campus, scope out the buildings & room numbers before the first day of classes, to prevent against frantic-lostness.
Try to sit in the front 2 rows.
No matter what your friends/cousins/olderSiblings told you, NEVER SKIP CLASSES!
If you fail all your classes & have to live in a box on the street, remember that God is awesome & still in control.