You don't. I don't know why you think after a year he's suddenly going to become a different person.
You either stay with him and you're going to spend your entire life as his mother, cleaning up after him, and financially supporting him when he loses his job because he's an alcoholic, or you break up with him and find a man who is actually a partner to you.
You seems controlling , and you have trust issues and it’s obvious what you do to this person … that will never serve your relationship.
You don't. I don't know why you think after a year he's suddenly going to become a different person.
You either stay with him and you're going to spend your entire life as his mother, cleaning up after him, and financially supporting him when he loses his job because he's an alcoholic, or you break up with him and find a man who is actually a partner to you.