Why are you afraid of joining AA? Just "not feeling like it" doesn't "really want to quit". If you are desperate to quit, you'd "go to any means" to recover; that includes AA. There are other groups out there (SOS, Rational Recovery) but they don't have the success of AA--no group does. There are people who can quit on their own, but they are rare. Most all recovery groups use a 12-step program adapted from AA's program.
Most of us alcoholics have learned the hard way that quitting requires support from our peers; this can only be obtained as a member of a group of some kind.
ADDENDUM: In spite of what other answers have said, it is NOT "all in your head". Alcoholism is a disease, recognized as such by the American Medical Association, among others. Like any other disease, it needs first to be evaluated by a competent physician, preferably one trained in addiction medicine. It then needs long-term follow-up care. If one does not want to go to AA, which is free, then one needs long-term care by a psychologist or psychiatrist, both of which cost money--lots of i!! If you are serious about getting well, it's your choice.