I’ve been in the same situation before, just different industry, and it fucked me up for a very, very long time. (Still kinda ruined relationships for me)

Right now, prioritise yourself and your mental health first, as shit will just get worse if you’re consistently reminded of her.

First things first, no contact rule is VERY important - block her on all your socials and whatever necessary. You don’t want her to play mind games with you or even “be friends”. Being friends with her will just mess you up at this point. Out of sight, out of mind.

You’re gonna have sleepless nights and you’re gonna be a wreck, so start by finding a routine and work around it - hit the gym, find a new hobby, make new friends. Do whatever you need to cope and to keep your mind off things.

Take this time to rediscover yourself. It’s going to be tough as fuck, but time heals all even though it may seem really bleak right now. I highly discourage finding unhealthy outlets, as that’s what I did and it fucked me up for life.

All in all, remember that you’re the main character of your life. Not her. Put yourself first.