I added more fiber and water to my diet. It keeps you full.
I got a vitamix and I regularly blend two stone fruit or fibrous fruit (oranges and such) with a bunch of water. I drink it all the time because I love fruit juice. It is less… vibrant than store juice but it tastes more natural and you get all the fiber and water. DO NOT STRAIN IT. If it’s too pulpy add more water, or add less fruit.
Find the nearest store or hangout to your house. Walk/Bike/Jog there every day. You don’t have to buy anything. It helps to become a regular because you can make new friends as well.
To each their own but ideally so that you don’t have to drive everywhere. So that meeting your neighbors isn’t so rare, and you can build community trust. So that you don’t have to buy everything in big huge amounts so you don’t have to make a big trip. So that the young and the elderly can get around without assistance or endangering others. So that common areas can grow and give your community a unique identity.
Basically less cars/road infrastructure and building community trust. Though, and you’ll probably mention it, it would take way more than a walkable neighborhood to fix these things. I mean if you don’t even want to know your neighbors this would be hell for you. While I appreciate the idea of communal spaces, there is a lot to be said for independent space as well.