Welcome welshfuture
A lot of good advice here...I quit after 20 years drinking myself.
I think I underestimated the changes I'd need to make or the time it would take for me to be, and stay, securely sober.
Thats not to put you off at all - just saying you'll need to be in it for the long haul. (Thats not antithetical to one day at a time either - drinkers or not all of us live our lives one day at a time )
Its a life change, not a diet - like Anna said drinking is but one part.
Don;t worry tho - you're not alone - you'll find a wealth of support here...and as hard as staying sober can be I found it easier than staying drunk
D