Welcome,
You have nothing to lose and everything to gain if you DO attend Al-Anon, read and post here, and focus on yourself and what you need.
It's what I have done, and when I finally understood that it was the ONLY thing to do, I was free.
I believe with all my heart that people come into our lives for a reason. Maybe he came into yours so you would begin to work on your own recovery from the effects that your loved ones' alcoholism has had on you.
Sending positive thoughts and encouragement your way.