Looking for advice on going forward following mental health issues

I’m honestly just reaching out here because I really don’t know where to start to pick myself up at in life right now. I’m an incoming college senior and I’ve noticed that I’ve started to become very socially inept and repulsed as of recently. I used to love hanging out in big social settings as a college freshman and sophomore. Honestly though, I was on academic probation until the end of my sophomore year because I messed up bad my first semester freshman year and skipped all my classes. To be fair though, I have bipolar disorder and childhood-PTSD. I think I may have had a manic episode in that time frame very early on because of some difficult stuff that was happening the summer leading into my first semester. I was sleeping on benches and staying up all night for days sometimes. But making friends was insanely easy for me, I made mass amounts of friends in that time period. After that semester, I was uneasy if I was going to get kicked out, but I was just put on academic probation and my parents never really told me why. But they let me continue into the 2nd semester. I did fine that semester though, I got 3 A’s, 1 B, 1 B-. Sadly, the following summer I developed an issue with ket and I had to pull out my 1st semester sophomore year and go to rehab because I started abusing my prescribed addy. I liked how much weight I lost while doing the ket. I was a little chubbier and hated my weight at the time. Coming back the next semester, I did really well for the classes I had. I got 4 A’s and 1 B+. I’m definitely sure though that I had another manic episode during that semester as I started to believe that I was Jesus and was destined to revolutionize life and the gov. That following summer I had to go to 2 intensive treatments for my mental health back to back. It was because I ended up having what I’m sure was a manic breakdown and ended up breaking my mom’s car window alignment at my grandparents house. The window was unbroken but it couldn’t open and it was a whole full thing over me walking 2 miles barefoot on the road beforehand and then walking back to the house and then that happened. I honestly don’t believe the treatment worked though as I still believed I was Jesus, but I believed I could never reveal it to anyone. The following semester I got all A’s in classes like law and political theory. It was the most passionate and will spirited I had ever felt in my life. It was also full though, of insanely depressive mood swings but it somehow worked out because of how long I would study for exams the days leading up to all of them. Over time though, I started to also hate people, like not my friends. But I did not see myself making any new friends, despite all but 4 of my 12 person friend group dropping out or being douches and me having literally no new friends this whole time following freshman year except 1 following sophomore year whom I’m living with one other dude that we both know and one random. Besides my current roommate I only have really met my girlfriend and her and her roommate, because it was right before I had to go to rehab. I got all A’s again recently but honestly hate people now and feel insanely socially burnt all the time because of school, I really feel like my ambition drive is out and am struggling to do things and hang out with remaining friends. I’m currently trying to get a job and do volunteer work to see if that will help during summer. But, I wanted to know what advice people have in the mean time.