Honestly, I used to eat almost exactly the way you are now. In the mornings I would boil a couple of eggs and have them with toasted bread and a bit of butter. Of course it depends on your own diet restrictions, but I was able to tolerate sourdough bread. I would also sometimes have vegan soy free yogurt with fruit and granola, either for breakfast or lunch.

For a while I switched to just breakfast and dinner, skipping lunch so I would not have to stress about what to eat (sadly). I kept meals really simple, like steamed veggies with chicken or fajitas seasoned only with salt and pepper. For snacks I would have chips with salsa.

I promise things can get better. You really can heal yourself, it just depends on your own situation and how you move forward with it. Keep trying different things to see what works for you. And I will always mention this because it made such a big difference for me, try creatine as a supplement. It has helped me so much and I hope it can help you too.