12, 7th grade. It's really all on me.
Back in 5th grade I had a crush, built up way too high expectations and couldn't deal with the rejection. My sense of self-worth was shattered and I found refugee in an online game.
It wasn't too much of a problem until 7th grade, when I had another crush (love at first sight). This time I was frozen with anxiety. Each day I'd come home from school, be mad that I couldn't even say hi, promise that I'd do it the next day, which I never did. This cycle built up a lot of stress and self hatred. That's when the real isolation began. Eventually, suicide seemed like an option until I figured if I really hated myself, then I couldn't escape the pain, I had to suffer.
Looking back, it's silly. Like, how's that real trauma? Even in high school I thought it was kinda stupid, so after isolating myself for 2.5 years I tried socializing again, got some good friends, talked to the whole class and more, but... I was simply anhedonic. Neither the realization of the silliness nor accomplishing what I hoped for changed that, so the effort was all pain, no gain. Didn't bother in college, lost touch with everyone aside from one guy who was messaging me from time to time, but I ghosted him 10 months ago and I guess he's finally given up.
I still have the same kind of drive, which is how I pushed myself to start a job and I'm able to keep a study routine, but to maintain relationships on top of that, like I did in high school, seems like too much work now.