Just MY personal experience here: I had reservations galore about stopping and plenty of lurking notions that I'd go back to it one of these days........and that was almost 5 yrs ago.
.....I had some outside help though. An alcohol tether I wore for 9 months "forced" me to not get drunk.....and during that time I got a sponsor, went to meetings, and started to work the program.
The only reason I bring this up is that, for me, it wasn't a requirement that I had to be fully committed to a life of sobriety from day one to begin a life of sobriety....... It sure would have made those early days easier to get through had I been more committed to it but it seems (to me) that if you'll take the action of the steps even if you don't necessarily believe in them or even when you're not sure you want what they offer.....they tend to work just as well as when you do want it and do believe in it.