Hi UK, welcome to SR! You've come to a great place! You'll find lots of support, wisdom and encouragement here!
I also work from home, and I'm in my mid forties. I quit alcohol just 5 months ago. I made a promise to myself earlier this year that the next half of my life (just had my 46th birthday) is going to be at my optimum health with no vices. I actually quit on my own without AA, however I hear it's fantastic. What has helped a great deal for me, has been a really simple habit of stocking up on a few favorite things like sparking water and iced-tea in my refrigerator. So all day long, I'm sipping on something healthy and refreshing, and that's become my new and healthy vice. That's my 2 cents! There is a lot of great ideas on SR.
You've come to a great place and we're supporting you!