Originally Posted by
blackstar 
Hi, I'm in a pretty unique situation.
I'm thinking of attending an Al-Anon meeting because I am sober and all of my friends have distanced themselves from me since I stopped drinking and I am incredibly lonely and depressed.
....
Basically, I am struggling with the loneliness that has come with being sober and away from my old social network and need support
In addition to joining some sort of 12-step group, have you considered going out to a few sober fun events? It would give you an opportunity to meet and perhaps make new friends who are also living a sober lifestyle. Might even have a little fun, too. I did a quick google for "Sober Events" which along with a city name or region location gave me quite a few hits.