Eliminating certain kinds of food entirely

Some foods tended to be things I quite simply ate too much of, and eliminating them entirely was the simpler option. Snacks are obvious in this category, but less obvious for me was bread and sandwiches.

Walking, a whole lot of it

Running can often be the exercise that comes to mind when wanting to lose weight, which is natural on account of its cultural prevalence and high energy requirement. The problem is that you can't really do a whole lot of it without getting tired, and if you're overweight it probably hurts like hell to do it.

Walking, on the other hand, can be done essentially in unlimited quantities. I took every opportunity to go for long walks at a brisk pace, listening primarily to podcasts but also audiobooks to keep me entertained. It was also a good opportunity to catch up with family by giving them a call.

Caloric restriction

At the end of the day, no matter what kinds of food I ate, my appetite still pushed me to put more energy into my body than I was able to spend. As such, I had to implement some form of caloric restriction to keep the number going down.

These things worked for me but may not be appropriate for you. Losing weight is very hard, some trial and error is probably a good idea. Good luck!