I have a friend that's an alcoholic but he has been water baptized so his church says he is saved and that's where grace comes in
Think of it like this. Anyone could decide it would be fun to go through being water baptized, however your church does it. It is simply having water put on you, means nothing.
But if someone wanted to have the Holy Spirit from God because the knew and gave themselves to Him. that very same water, combined with prayer, would be powerful. You could choose to ignore that power and not make use of it in your life, but it would always be available to you.
That is different from being saved. That is accepting Jesus as our Savior. Jesus is our Savior when He cleanses us of all our sins when we go to Him in repentance. We can not even know of all our sin so as to repent of everything, we can only say we put on Christ and do our best to follow Him, and ask for forgiveness for all.
With alcoholism, it is hard to know. It is a terrible disease that involves the mind. I know of one man who was absolutely cured of it one Sunday, I asked him to tell me about it. He said that when he found out who Christ was and what He had done for him one Sunday morning, he gave over his entire life to him. It not only involved the alcohol, but many things in his life, even his marriage.