Hi Kid
You don't need to leave.
You need to stay and keep trying to get sober. If you want it enough it can be done. Unfortunately there are no miracle cures although it feels like a miracle to me that I ever got sober. I was a daily heavy drinking mess!
I had so many attempts and I believed it was impossible each time I failed, but now I am nearly 4 months sober, early days I know but I am hopeful that I got it this time.
If your going through hell keep going.