I Am Insulin Dependent Diabetic. My Question Is My Sugar

I am insulin dependent diabetic.
My question is my sugar level are very high.
I am very strict with my diet , i dont eat no sugary food or starchy food.
I dont feel hungry.
For breakfast i eat a small bowl if oats porriadge with greek yogurt and 4 - 5 black berries with very little milk .

For lunch i eat salad made with carrots , kidney beans, tomatoes, capsicum medium bowl ful

Evening meal i eat on cheese sandwitch and one kiwi fruit.

That is only if i am hungry . Otherwise i dont eat.

Still my sugar levels very high. It varies sometimes point 17 10 14 .
Some times will come down to point 8 9 6 but not always.

I cannot eat meat chicken eggs i feel sick and can not take the smell of it.

I get very stressed and just worry about my diabetic, i dont knownhow to brung it down?

I do lot of walking and also keep myself busy.

Also i take my medication in time.

Sorry can u plse ignore this question happenned by mistake