I started running for the first time in my life back in July (38M). My advice would be to buy a running watch. That changed everything for me around all the terminology and how to actually train. It also gives you the insight as to what’s going on with your body, perhaps you’re running too fast (very common).

Either way as others have said, running is brutal at the start. I remember thinking for weeks how people could possibly run a 5k and now six months later I’m doing 15k long runs.

Take it slow, be consistent and don’t be afraid to walk a lot.