I just read your goals. I quit smoking, too, in December. So far so good. I hope you are doing well.
My motivation came from many different directions, but it came down to being in control of my life and as much as I can, my death. No need to hasten it. Anyway, this is your goals, not mine, so I will stop.
I wanted to share a web site that I read for a few hours a couple days before I quit, and then later, here and there, for some extra motivation.