[Latte]

I'm so sorry that this happened to you. It doesn't matter if you made a mistake; you went on a god damn date with the guy you thought was about to break up with her. Was that stupid? Yes (sorry). But you sure sure hell didn't deserve having her and her friends literally attack you and persist to the point where criminal charges were brought against you.

Since you're going to juvenile detention versus regular prison, at least that means you were charged as a child (I would assume) and you can possibly have the record expunged or sealed once you turn 18. You can seek out a criminal defence attorney to find out how to make this happen because it doesn't just go away on it's own and banks, landlords, employers etc. can ask if you've ever been convicted, and while you can tell them it was a juvenile crime / happened when you were a minor, it might be worth your time to have a criminal law attorney help you in this area to limit its impact on your future.