You write as if your problematic drinking only started a few months ago. Is this correct? Or would it be more correct to say that the problem has been more ongoing than this, and the loneliness and break up are just your best and most recent justifications for drinking?
This might not seem such an important distinction to you at the moment, but it really is quite a fundamental thing to understand if you are going to really get well.
Wishing you all the best for your recovery. BB