Sorry you're having a bad time. If you feel like the antidepressants will help, then I'd give them another go, but I don't think taking antidepressants is necessarily a guarantee that you'll stop cutting. I didn't start cutting until
after I started antidepressants - but then the first few drugs I tried weren't so helpful to me! But, everyone is different, so don't let me put you off the idea.
I've found therapy more helpful in tackling these issues though, and tackling the root of these issues - not just the way I deal with them. I know, though, therapy is expensive. That IS a drawback! I don't know if there's anything you could arrange, or even if it's something you'd want to do, but all I can say is that in my experience it has helped.
In the meantime, keep posting here on the forums, I find that helps keep me out of trouble, too! Good luck x