Middle school me was a fucking moron

I’m freaking out over something I did in the past again way back in middle school. It was funny at the time and all parties involved laughed but of course in hindsight would not fly in todays standards. Basically as silly and ridiculous as it sounds, I saw it prior on social media and thought it was funny where basically another person slapped their friends boob and shouted “titty slap bitch!” Because they were messing around and it was funny, or at least I thought it was. I ended doing the same thing to another friend and we all thought it was funny, funny enough that she posted it in her snap chat story. It’s eating me up. It was so dumb and I really wish I didn’t do it. I would give anything to go back in time and not have done that. I just can’t believe I was so stupid and god forbid she for some reason decides to resurface it and ruin my life. The anxiety is both sourced from “oh my god why did I do that?” And “this might just ruin my life.” I don’t know I guess I just needed to get this off my chest, pun not intended, and confess my sins.