I am so sorry you are having a difficult time but drinking will only make everything worse. I once had a truly awful boss and she made my life a misery. It totally took over my life and I was anxious, depressed and in a terrible state. I ended up leaving the job. I wish I had had the courage to speak with her directly and/or speak with HR about the situation. It sounds as if the issue at work is fundamental in causing you such pain. please speak with your HR department and/or rep if there is such a thing. Or your manager's manager. Companies nowadays are much more on the ball about such issues and will be able to help you.