Regardless of what others have said, I would highly recommend Al-anon.
No, their members are not perfect, but neither are you.
I was raised in a church setting, but still had a Father that was a closet drinker. This along w/ a very strict religious system had quite a negative impact on my life. Al-anon helped me to learn to "think for myself" without anyone judging me for doing so. It has been great therapy for me ..... and it doesn't cost a thing except your time.