oomp,
The longer you go without drinking, the more your old self will return. Remember that alcohol is a depressant, and drinking as much as we did has an affect over time. It probably took me six months to get on an even keel. So don't get down on yourself, or expect that it will change overnight.
As for the meds, if they are not working talk to your doctor. They had me on Lexapro for a while and it did help-me. But trust your doctor and be honest about what is going on with you to him.
All the best, little brother!
JK