Its very difficult to make choice, I think nobady knows what is the best choice in your case.
So here are some humble advices from me:
1. Dont be too hurry to leave, and think over every your decision without feelings.
2. Dont play their game ( feeling as mentally diseased, evil, bad, etc ) WBTS want this. You must be amazing if you found out their lies. Its not easy.
3. Find real friends somewhere out, find hobby or sport where you can find friends, and even better find some ex to become your friends.
4. Move out and then leave when you are ready or dont leave just become inactive, definitely go step by step.
I wish you all the best and good luck!