A few things:

I started eating 2 hard boiled eggs (aka arse fruit) each morning. I now don't have a hunger craving at 10am like I used to have and can easily work through to lunch time and have a moderate lunch.

I joined a choir and it helps take my mind off the 9 hours of coding I do every day. It also gives me an outlet for my limited artistic side.

You say besides exercise, but I have to add that I started boxing. We have clubs that specialise in white-collar boxing, which has a lower barrier to entry than normal amateur boxing. I'm not good, but the club is inviting of all levels of talent and it's the best exercise I've ever done. Had my first public fight in March 2016, which was a big psychological hurdle. Nailed it.