Hi Jellybean,
I remember wondering the same thing in my early days....I thought I would lose my mind if I had to keep obsessing about drinking/not drinking for the rest of my life!
Eventually the constant thinking did fade away, and it was probably around a year....
About the same time my thinking changed from "poor me, I can't drink" to "WOW I am so lucky to be sober", and that was a real game changer!
After 2 1/ 2 years or so, I feel so lucky to have escaped and am in awe of how much better life has become.
So, push your way through, do what you need to do---- it is so worth it, and eventually the thoughts will fade to barely noticeable little blips!