Not in university anymore but the friends I had generally were accepting of my stutter. I also always told professors about my stutter if I felt it was bad enough or if I had to present in front of class. One thing I’ve learned and it’s incredibly hard to do is to really focus on yourself and not give too much care to how other people perceive you when you stutter. Just try to work on it and move on. You not going to class isn’t going to make anything better. Gotta nice forward and take it day by day.