Gestational diabetes

So I was diagnosed with GD 3 weeks ago. I failed the one hour test and the nurse said my number was so high they didn’t even wanna do the 3 hour. Do you think I should request the 3 hour test?? My first visit with the dietician was Friday the 3rd. So I’ve been testing for 3 days and these are my numbers. I haven’t ate healthy. Honestly the only difference I’ve made is cutting out pop and a lot of sweets, everything else I’ve been doing normally. Friday I ate McDonald’s 10 piece nugget and fries for dinner, Saturday I ate manicotti with garlic bread and a medium chocolate frosty. Today for breakfast I ate a sausage biscuit and a donut, for lunch I had kfc mashed potatoes and gravy, biscuits and chicken, and then chips and cheese dip with rice and chicken tonight for dinner. I’m hoping my numbers stay this way and I don’t end up having to do medication or insulin shots.