Hi Jimmy - welcome
the classes are generally based on when you got sober - all you need to do to 'join' is post...
https://www.soberrecovery.com/forums...rt-2-a-14.html (Class of October 2018 Part 2) https://www.soberrecovery.com/forums...art-3-a-2.html
as for why people drink again - addictions illogical and irrational and my mind was both those things when I was drinking.
Logic couldn't penetrate my mind when the thirst came upon me.
Quitting gave me my mind back and I believe I'm rational enough now to see drinking for the self destructive thing it is
D