I can understand the distress you are through. Alcohol and depression works together. The treatment consist of managing both the problem at the same time. You need to address the alcohol problem and also the depression. Underlying anxiety problem is also suspected. There is no textbook tteatment plan. The treatment needs to be tailored. It may happen that certain drugs may not work and changing or trying a different medications can be required.
Next Steps
I would strongly suggest to discuss it with your treating Consultant. If you are not satisfied by the treatment, you may also consider for a second opinion. An admission to hospital can be needed.