Sweetie...even when you were the right age to be a twink, all I can picture is a bunch of older gay men muttering "Oh for fuck's sake, give him whatever he wants or we're gonna DIE!"
Everybody puts on weight as they get older, unless they're the obsessed Hollywood types who starve themselves and work out constantly. It's something that just happens. Your did something wonderful for your health...and for your longevity. You're raising a very smart daughter who wants to keep her Dad around all her life. Massive kudos to you on that one, my man.
I so far have just done little things. Took the creamer out of my coffee, which cut down on my daily caloric intake like crazy. Got a little dog who has to be taken out multiple times a day, which forces me to walk some. Got a TENS unit for my back, which actually allows me to walk some. (Although in the height of irony, the walking has totally trashed the *rest* of my body, which has not been able to move about this much in years.)
The new home has a dishwasher, so I'm determined to use every dish I have as often as possible, and now start every dinner with a big, healthy salad. I get everything "fat free" now: skim milk, fat free yogurt, fat free sour cream, etc., etc. It all adds up. (Or minuses up, as it were.)