Because I am diabetic and overweight, I decided to go on a very low carb diet, eliminating most carbs except for one dish of vegetables a day - usually spinach, cauliflower or green beans.
I have been eliminating my sugar intake as well, allowing for some natural sugar contained in veggies or on the rare occasion - some fruit, mainly blueberries.
My diet consists of lean chicken, reduced fat cheese(no carbs) a couple of eggs a day - hardboiled, poached
Almond milk (induces sleep) and I limit myself to one plate full of low starch veggies
Through this diet, I have noticed that I am more stable, especially mood wise - no highs and lows - just even moods
I feel better and my sleep is pretty good lately, I havent checked my blood sugar levels, but I am expecting better results than before the low carb diet. I have lost more weight but I am not so active - I can do better in this arena
I am going to try to stick with it and make it a permanent part of my life - see how it goes
You may want to up the veg a bit, but stick mainly with the green leafy stuff. You may not be getting enough minerals and vitamins if you skimp too much on the veggies. Have you checked the low fat cheese to see if they’re putting any strange processed goop into it in place of the fat?
10-96
Good advice @shutterbug I have been thinking about increasing my veggie intake - going to do this starting today.
I checked the cheese the ingredents are pretty straightforward but I am going to cut down on the cheese because it is reduced fat - I just dont know how ‘pure’ it is. Thanks for the advice man, I do appreciate it 
You’ll find they are adding cellulose to a lot of low fat food products. It’s wood pulp that has been reduced to a powder. No odour, no taste, no calories. Because it’s essentially leftover tree, they can legally call it ‘all natural’ and ‘organic’ on most food packaging. I find the stuff disgusting.
10-96
Way to go Wave, keep up the good work.
Remember your brain is fueled by fat. Fat is VERY important. Some people with schizophrenia have benefited from the keto diet, high fat moderate protein low carb. Contrary to popular belief, fat does not make you fat! It doesn’t work that way.
I follow a similar diet with a few differences:
You can eat eggs however you like - scrambled, poached and so forth. I add veggies and cheese and that’s fine for lunch/dinner too. Hard-boiled only can get a bit boring. Don’t be afraid of healthy fats - in moderation, they’re good for you, give you a sense of fullness/satiety and won’t affect your diabetes.
Up you veggies - cucumber, zuchini, cauliflower, mushrooms, eggplant, capsicum - all good.
In terms of protein - all lean meat is good; include red meat for iron if you can. I love fish so generally have that for dinner 3 nights a week as the protein component.
Condiments are great - utilise things like soy/oyster sauce to add flavour without caloric impact. Garlic and onion are also very diet friendly.
Don’t be fooled with the ‘diet’ products - usually, these have sugar as a substitute for fat. I eat full-fat yoghurt with some berries for breakfast, for example. It’s far more satisfying that a fat-free yoghurt which usually has several additives to make it edible and offers very little in terms of nutritional benefit.
I never buy diet foods - it’s over-processed garbage that your body doesn’t even register as real food so you’re left hungry soon after.
My blood sugar levels were hovering around 7 prior to switching to a grain/cereal free, low carb, moderate fat diet. Now I’m sitting at 4.5 consistently. My sister and I are the only people in my family without diabetes and that’s mostly a result of having a high protein/fat diet. We’re also the only ones that aren’t hovering on obesity so it goes to show.
Good luck 
It takes a bit of adjustment but it’s worth it.
I forgot, I do eat a lot of fish especially tuna because its convenient - I do eat healthy fats olive oil etc…
Healthier fats are not the enemy - processed foods containing sugar high carbs are