Your story reminds me of mine and several others... taking it in stages. Congrats on quitting smoking and each of the subsequent steps. Obviously they have stuck. And yeah... it is a bummer that the closer you get to your goal the harder it seems to be to reach it. But persistance and perserverence will pay off.
As you poke around the forums you'll see there are folks from all walks of life and at all stages from extremely fit to just starting to getting moving. But everyone shares a common desire to improve their health and to share their journey. (Safety in numbers.. yano).
So welcome! Join in! Start a thread. Tell us more about yourself and don't be afraid to ask a question now and again. Sometimes the best discussions start from a simple question.