I made some poor choices in college and even had to withdraw later one semester to reset myself. This was at a different B1G school but there were a few diffferent “withdrawal periods”.
1st one was in the first couple weeks and it was like you were never there minus a small amount of $$$$
2nd one you forfeit all your $$$$ but there is no grade impact
3rd one you forfeit all your $$$$ and you fail everything and have to apply for a hardship waiver from the school for any grade relief.
”I got drunk and smoked pot too often” was not a reason for a hardship waiver unless you went to rehab and had a lot of paperwork and all that good stuff when I was there.