I went grain free and feel a million times better. Lots of negative symptoms went away, some that I didn't even realize were happening until they stopped. I'm working on trying to feel my kids gluten free at home, because I'm convinced grains have a negative effect on our moods and weight. We have also cut way down on sugar. I bake a little with coconut flour and almond flour. The kids love the goodies and enjoy that mom doesn't say 'no' to them.
I also cut out coffee, although I'm not sure I'll stick with that for more than a month (I love it). I'm doing a detox and want to see what effects me when I start eating it again after the cleanse. I'm currently doing no gluten, no dairy, no sugar, no red meat, limited fruits, no caffeine, no alcohol. Basically I'm eating veggies and chicken, fish and eggs. I feel good so far! My blood sugar has been stable and I don't feel excessively hungry. Lots of energy for the most part too, although I do feel a little weird without my coffee. I used to love that revved up, ready to think feeling when I was working. My focus is a little dull now. I'm hoping that passes after a week or so.
Sounds like you are doing great, by making some small changes and just being aware of what you are eating. My kids still have treats now and then, but at home we try to eat healthy. Elanaspantry.com is where I find most of the treats I make. Her recipes are amazing. Oh, and I have trouble paying for organic produce too. I'm working on keeping that "dirty dozen" list with me, so I can at least pick those up as organic and then save a little on the rest of the veggies.