Welcome to SR! You will find a lot of support here if you want to recover from the ravages of alcoholism. Please read the stickies at the top of the forum. They contain a lot of wisdom and will answer a lot of questions you may have.
It's good that you want to stop drinking, and it is true that you must want it for yourself, not for some guy or your family. It will have to be the most important thing in your world. You will need support, and SR is great in that area, but having face-to-face support is important, too. Have you considered attending AA meetings or finding an addictions counselor to help? There are many avenues of support available, and I hope you will find the one that is right for you.