Hi dpa,
Welcome indeed and well done to take those difficult first steps. I have personally invested in an exercise bike, given I personally don’t have the time or desire to travel to the gym and work out, but from the comfort of my home I can pop on my headphones and ‘get on my bike’! I’m doing about 10k a day at the moment. For me it actually had nothing to do with stopping gambling, I had already bought it to get a bit fitter before I put a stop on my gambling this time round.
However, a lot of recovering addicts seems to get a kick from exercise, whether running or at the gym or wherever. This is probably because of the production of, amongst other things, endorphins, dopamine and serotonin. So, you are getting your mood enhancing drugs via another method.
Like everything on this site, this is personal opinion and observation and what works for one may not work for another, but it’s always worth sharing.
Hope this helps a bit?