You may find some of the long running threads supporting those of us who are (or are trying to be) sober are not quite the thing for you, as many of us have considerable alcohol problems - which makes it both more and less likely we will succumb to drinking again, if you see what I mean. More because we have a problem with it and less because we know we have a problem with it. I know that I have to not drink - ever. There is no moderate drinking that I could do. You may always wonder if maybe you could, even though you suspect you could not. On the other hand, it's not going to kill you to give up for, say, two years and then decide what relationship you want to have with alcohol.
When I first quit my GP told me I had to give up for a year. This seemed an unimaginably long time but was a very well-chosen period - if he had said 'forever' I would probably have given up before I'd even started. But many even hardened drunks can give up for shorter periods of time in an effort to convince themselves they don't have a problem, so it does need to be a fair chunk of time.
I was very honest with friends and co-workers about my drinking problem, which meant I was never pressurised to drink. You may need to think about how to handle this, as people tend to assume you don't mean giving up all drinking, that you'd still have a glass of champagne on a special occasion or whatever. Like the majority of the world's population, who never drink, are unable to celebrate anything!
You will need to be quite mindful, especially at first. Your brain will trigger you because you have a habit (I don't mean an addiction). This may be drinking whilst cooking the tea, or once you get to slump after doing bed time. Be alert to these and ready to combat them. Plan ahead - I was very worried when I first did a business trip after I gave up booze because I knew the temptation would be very strong - a glass of wine on the long train journey, a glass of wine at the hotel. No-one would ever know. So I said exactly that to my DH, I'm worried I will do this because I can, and it gave me the accountability not to do it.
Keep your hands busy - I used to play Animal Crossing on my DS (love that game) and when I got a bit better and could concentrate more, I took up knitting. Which has proven to be an even more ruinously expensive 'hobby' than drinking but is better in all other ways 
I now avoid alcohol situations much more than when I first quit, because then I wanted to still be able to socialise with my friends in the same way. Now I'm happier to socialise with them in different ways. I like lunch, and coffee (I don't actually drink coffee but what else do you call it when you go out for a drink in the day?), not pub after work or dinners out.
I completely agree with Purple's post yesterday, particularly this:
My life is very much simpler and immeasurably better. I don't have to give it head space. I cannot recommend being teetotal, or sober highly enough. I think UK society sells alcohol (and particularly this whole wine drinking mothers shite) for lots of reasons, none of which are good. I now see it wine/alcohol for what it is - an addictive poison.
No-one's life is ever worse for not drinking.