I know from experience every little counts and it does give you end results. At 7 stone I could do repeat 5k on a treadmill in the gym with ease, my breathing was on point too all built up from can't endure it.
There's shit on the fields. I'm not doing that. I have tilgate park near me where at school we use to do cross country. I was hoping to get my bike there then reality sunk in I can barely make it up the road and back.
Honestly I'm counting on the diet to shed weight then start at a lower weight. I'm carrying round an extra me. It's disgusting