In 1979 I was a raving alcoholic, I was at the point that nearly everytime I had a drink I wound up drunk. I went to AA, but I also attended any church that was open. I was delivered from alcoholism and received the Holy Spirit in a Pentecostal church but became engrossed in Jewish aspects at the same time. In my early childhood I was Catholic, an uncle was a Priest and I knew real wine was used then. I became aware that real wine was used by many Jews as well as a result developed an odd testimony to my deliverance. A glass of wine on Shabat and certain Jewish festivals is a witness to my deliverance. The Lord has blessed me with 10 children during this time and many other miracles as well. When I used to drink beer it was to have a good time but it eventually lead to bitterness. Now when I have the cup of wine it is to recognize the joy in my life which continues to flow. Perhaps it is the intent that matters, I hope I am not rationalizing this matter. I know Jesus drank wine at the proper time but He is the Lord, I am just a follower. I know it is a touchy issue but to me it is like a fire that is dangerous, still it is so nice to set in front of the fire place once in a while.
I know some Catholics have beer busts before Lent or for any "good" reason which I have set aside and I hear it is okay for a Jew to get slightly drunk on Purim which would have been a good enough reason for me to do so were I still an alcoholic but Jesus has delivered me. I have considered just giving up the cup of wine but it is like I would be refusing a gift.
I hope this helps and that I have not confused the issue even farther.