did your gynae advise you on anything? or refer you to a dietician? diet control should be able to bring the numbers down, and eating 3 meals + 3 snacks would help too. and of course what you eat matters as well.
for me, i only ate low-gi bread w pure peanut butter for breakfast. will alternate between PB and a sunny side up. lunch + dinner, i actually try and eat brown rice whenever i can and actually weigh it. chicken breast, lean meat and leafy veg are good too :)
it’s only your first week! dont be too hard on yourself. my first week was a trial and error week to see what spikes and doesn’t spike my numbers. oh, and go for walks after meals helps too :) good luck!