Your second post makes a difference in what I was saying. I spent a large portion of my younger years in that state and, I admit, am still wistful when at a wedding and married folks/established couples of whatever orientation get up to dance and I finally get escorted out on the dance floor by my eleven year old male cousin or my niece. I do get a little sad on NYEve when the ball comes down and (if I am with a large group of friends/family) all the couples kiss. I cry over the end of When Harry Met Sally (which I love) because of the NYE scene. Then I take a deep breath, find things that are good about my life and go on. I don't mean that to sound supercilious, BTW, but however I try to phrase that last line it just sounds snide, so I want you to know I mean it helpfully not snottily.
All I can offer as advice is what another friend said...she takes herself on vacation at that time of year. A cruise if she can afford it, a mini spa thing if she can't.
If that doesn't work, and you are in Connecticut and don't mind spending time with a couple of elderly chicks crabbing about their bosses, their even more elderly parents and arguing over whether or not James Spader is still s3x-y, but all means, you are invited to my Old Maids Party. (And everyone else for that matter....the food sounds GOOD and the company even better! Anyone out there like Trivial Pursuit, Book Edition?