Hi there,
Its seems to me that you are at a crossroads.
If you wish to progress in therapy, you need to quit drinking, and deal with stuff, not an easy choice, alternatively, keep drinking, avoid what it is you are scared of, and possibly die.
Its never as bad as we think, the things that we avoid that is. Maybe uncomfortable at times, but you only need to do it once.
I encourage you to face your fear, you seem to have a smart therapist, trust the process.
Love, Rose