Yes you can. You actually answered your own question right in the first paragraph of your post - if you don't make the commitment, it won't happen. The good news is that you have 100% control over it...today can be the beginning of a sober life for you of you truly want it. It doesn't matter how many times you've tried, if you commit this can be the time. If AA does work for you that sounds like a great idea to hit a meeting today.