Serinidad two words.... You can!
You ARE in control. You are choosing whether you drink or not. The drink does not pour it's self down your throat.
If you want to quit... Quit! Don't buy it. Don't touch a bottle. Treat it like the poison it truly is.
If you want to stop...STOP.
The mental stress of quitting is brutal. The physical act is simple. Just don't touch it!