Fell off the wagon hard

I've been a somewhat functioning alcoholic the last year, managed to hold down jobs and make good money while still having a somewhat normal relationship with my girlfriend (now ex). Anyway the shit hit the fan about two weeks ago, I lost my job, she ended things finally. And of course I decided to go on a giant bender. I don't know where to go from here, I have money saved so that isn't a huge issue but since all that has happened by drinking more I seem to have alienated everyone from my life. She asked mutual friends of ours not to talk to me, friends of mine who I thought I were close with don't want to hear my sob story. I have no idea what to do and my drinking now is getting out of control. Where do I go from here, I'm starting to get so depressed now I am having suicidal thoughts, which I would never act on but still it's that bad.