Hey Buddy,
It sounds like you are off to a great start; clearing the slate is an excellent idea. Now you just have to stock up on the good stuff, and I mean
good stuff. Make sure you have things that you actually like or at least are eager to try. You'll be wanting stuff on hand for when the munchies hit.
I'll share a little of how a Saturday morning around here goes. It's 7am (neighbor kid woke me up) and I just threw together a big old pot of lentil soup to simmer away, it took all of ten minutes to assemble and now it just simmers for an hour while I do other things, like come in here.
This was pre-coffee mind you, that's how dead simple this can be, in fact stumbling about making said coffee I realized that was harder than making soup.
When the hour is up, I'll stuff that in the fridge and go hit the beach for a good walk and some fresh air, knowing that when I get back lunch is handled. That does wonders for my mental state. No beach required, maybe a near park or wooded area. An outdoor change of venue is a great way to start any day.
This doesn't have to be hard but there will be that adjustment period of getting used to new things and settling into new routines.
Plan on cooking up a batch of something you like 2-3 times over the course of the week, that way there are always good leftovers around for lunches or snacks.
I know you don't like veggies, how about fruit? I find that as you get used to it a really great piece of fruit can fix the sweet tooth just fine. If you keep a bowl full of different colors of fruits it will help out on the nutrition front too.
Having better choices around makes it a lot easier. Forgive minor transgressions and don't allow big ones.
You can do this!