Wouldn't your life be better? How much did you spend on alcohol? Imagine you invested this money or started a business with it?
If you never had any alcohol you would have avoided many mistakes, work harder and more easily, you would be smarter, richer, more healthy and with better friends

Just because a substance is problematic for you, doesn't mean that it is for everyone else.
In moderation I find that alcohol is beneficial to one's life (for health and social reasons).