I don't think there is a single alcoholic who doesn't know what its like to be lonley.
You are not alone. I am very lonely right now. I don't know what I am doing or how to describe my feelings.
Right now, I am putting faith in my sponsor and the twelve steps to relieve me of the desire to use chemicals for pleasure.
I see you have a home group. Do you have a sponsor? Are you working the steps?
If the answer is no to either of the above, its possible that is the problem. If they answer is yes, then keep pushing through my friend.
"Rarely have we seen a person fail who has throughly followed our path..."