Sounds like you are doing well, too. Don't deny that. About the cooking -

Keep it simple, but accept most days you will need an hour and some effort.

Always clean up the same day, so you don't get overwhelmed. Keep the kitchen an inviting place to work.

Get what you need to have leftovers, Tupperware, wrapping foil, whatever. Make leftovers a part of the plan. If you make, say, spaghetti, realize you will have enough for two or three meals, and go with it. Leftovers are essential for single folks, makes it worth the effort, and reduces the effort on leftover day.

Use paper plates, single pot meals, etc. when you can.

Many recipes can be made without all the ingredients called for. Use the spices you like. Play around a little, when you make something you like, incorporate it into the 10 meals I mentioned earlier.

Get a good, healthy breakfast that is easy to work with, and stick to it.

Lunches can be two simple sandwiches and a piece of fruit, and that works well if you go out to a restaurant with friends once or twice a week.

If you don't want to eat it, don't put it in the cart. Do some thinking before heading to the grocery, and try to exercise discipline when you are in there. If it isn't in the cart, you don't get it at home.

A couple times a week, you can say fuck it, but keep your core diet healthy.

Exercise. Find something fun. I used to play softball, now my dog hikes me in the woods. And I get off my ass and work around the house.

Most important, keep that kitchen clean, so when you feel like cooking, you can go get creative without having to battle. The sink is the most important, keep the sink absolutely clean. Don't leave the house with a dirty sink.

Not that I am a perfect role model, but these are things that work for me. Simple common sense trumps all the fancy stuff you may read.

-Chuck, Vegetarian fanboy