You could try to explain to the friends you had what happened. In my experience there are some who will understand and some who don't. The bond I have with the friends who understood after I explained has grown and some people aren't in my life anymore. Just take your time and try to do what feels good for you.

I am in the same boat. Only a couple of friends stuck by me. Everyone else gave up on me. I agree with what others have said. People who can't, or won't, try to understand your situation aren't true friends. I've found it hard to form new relationships, but got to keep trying.

To be honest I found all my friendships disappeared one even as much said she didn't understand depression and that and she didn't want to I made my bed now I lay in it and I found it very hard as she had been a close friend for many years but as I started to look at it if she dosent want to understand why waste time and possibly get stressed etc over it just move on and start a fresh

True and trusted friends never turn away from a friend in need. Time to keep the closest that stuck by your side when things went a bit off course for a while and try to forge some new and stronger friendships for the future x

As already suggested, you could try and explain to your friends (you wish to stay in touch with) about your reasons why you have been so distant. If they understand and are supported then their true friends. If you get any type of negative reaction (eg. Judgement, reaction etc) then their not TRUE FRIENDS in the first place... Hope that helps. :-)