I'm really sorry that you're having such a rough time right now..
It can get better - not right now but it can get better.
I've lived in that world that you lived in.. i wouldn't ever want to go back to it.
I would honestly prefer to be homeless than go back to live amongst the rich and powerful people that drop you the moment you go out of fashion (or lose your money).
An excess of money seems to do something to people.. or uncaring people are the ones most likely to end up rich..
I know that withdrawal is a horrible horrible thing to go through when you're on your own.. it's really really important to have supporters around you that you can call up or take a walk with when you're having a rough day.
It sounds like it would be helpful to do a little spring cleaning of your friendship group.. if they're hurting you then they're not really your friends.
Do you go to meetings at all (12 step programme things).? They can be a huge huge help to many people and you can also be supportive to others when you're strong enough.
There are genuine people out there.. that I promise you. Maybe you'll find some of them at a meeting.
xx