Don't consider your college friends as true friends.
Won't waste a lot of your time, this is a life lesson that either life will teach you in its own way, or you just learn it from others experience.
Learn to have boundaries and be aware of what you reveal about yourself to these college mates, because they can be used negatively by them to worsen your mental state.
As for myself, I revealed to the person whom I thought was a good friend I met in college, I revealed some personal stuff and now they use that insecurity to target me every single day (my biggest fucking regret till date).
Thanks to my dumbass being the "nice" guy, avoid being like me, sending notes, assignment solutions, and all great guides for free thinking helping others is a great act. Learn to be somewhat selfish, these "so called" friends at college, didn't even bother helping me when I needed their help last week, they have only resulted in giving me more and more problems, I am more like their go to solution if they land into any problem. Whenever I ask for help, their typical response is like "Pata nhi bhai" "Tu dekh le khud yaar" etc etc.
At this point, I have given up on the fact that I'll get a moral support any time soon, got typical Indian parents that don't show even basic respect for me, lost contact to actual friends I had online and in school.
Open up like me, and get humiliated by the crowd. You aren't supposed to share your feelings as a human being, maybe, I haven't found the right people yet. Just be a emotionless fucking robot producing code.
TLDR: Work on yourself, love yourself, nobody else cares. The sooner you realise this, the better. If these people only care about you when you are doing good, but not when you are at your lowest, how can you even call them friends?
