Thanks for this topic, and for bringing it up again.
I decided last October that I would join a gym and work out. I did. I've worked out six days a week, intensely, since that time, except for when I had bronchitis in January and the flu in March. After each illness, I resumed working out and it didn't take long to get up to the level where I was before I was sick.
I'm very proud of this because nothing outside of myself and my personal circumstances that involve JUST ME, will get in the way of this very wonderful thing in my life.