TIFU by being horny on snapchat

Hi,

sorry for the terrible writing as I am super stressed out right now. Before i get hate: I know I am incredibly stupid for this. I want to die right now.

I am a 20 year old college student in California. I made a snapchat account to sext strangers and stuff. basically I would add strangers and talk to them and sext. 2 weeks ago I ended up adding someone and I found out that I actually had mutual connections with them (IRL). Like, they were close family friends with family friends in my neighborhood who I've known for like 10 years. I (stupidly) reveal this information to her and obviously she wants to know who I am. we talk here and there for a week or so and the whole time I am making innuendos and saying stupid horny stuff. But, we do end up making chill conversation as friends and at one point we are talking late and she hints that she might want to do some (sexual) stuff. Up to this point she is assuring me that she would tell nobody etc.

So, she tells me that it's too risky for her to send anything as i know who she is and could expose her and she knows nothing about me. Fair enough. i reveal my identity and she then says "I'm tired going to bed good night". I immediately start freaking out and block her on instagram. She is extremely offended, says I can't take it back, etc. Instagram is bugging and won't let me unblock. So, I apologize and figure it'll blow over.

Fast forward a week or so. I get a follow request on instagram from someone she mentioned was a close friend of hers (who I had met at a party or something one time). In addition, her friend from my neighborhood ADDS THE SEXTING SNAPCHAT ACCOUNT and I've known this person since I was like 10. I'm so fucked, what do I do?? just deny it all ever happened??? I feel like having her instagram blocked is evidence and even though the account has a fake name and all they have no reason to doubt her. Fuck. Losing my mind. need sanity and to be assured that my entire circle of family friends will not come to know about this.

TL;DR: Had a freakchat account, ran into someone I'm 2 degrees of separation from and continued anyway. Revealed my identity, freaked out, now I have probably been outed to her friends (many of whom are my family friends who I will run into at grad parties etc.).