I have been sober now for 18 months! I did it without the help of AA or anyother group.
But I think it depends on the person and the desire of stopping and why.
I had the very strong shoulders of SR and a few wonderful friends,and of course a very supportive family.
My last drunk was a very tramatic awful "slap in the face"and I strongly beleive that it was just in time.
I made a choice...the alcohol or my family! I took the path to a healthy relationship with my family.
I DO NOT have the desire to drink again!
Will I someday? Maybe so...but for now even the smell makes me sick to my stomach!
I read books,and kept a journal and I have the very strong support of my children and my husband...and I have the Lord in my life.
So,yes I think it can be,but everyone needs some kind of support system be it AA,or some other place...or a strong family support system.
Could I have quit if I would have had no one? No! I would still be drinking today,or perhaps dead!