Ok first take a deep breath. You're getting yourself all tangled up and it's understandable, it can be very upsetting, but this is very manageable.
You need to be eating 3 meals and 3 snacks a day. Breakfast, mid-morning snack, lunch, mid-afternoon snack, dinner, bedtime snack. This will help keep your blood sugars stable and get enough food into you.
Breakfast is always the trickiest. Eggs are best, but I struggled to stomach them while pregnant. One slice of buttery toast and a pot of kvarg was one I found to work well. Make sure to include 1 portion of carbs (a slice of toast, 20g jumbo porridge oats, an apple) at breakfast.
Nuts are an amazing source of calories and pair higher carb foods well. So for snacks you could have some apple and peanut butter, or even a small piece of chocolate with some almonds.
Lunch is 3-4 carb portions. So a sandwich and a yoghurt maybe? I was obsessed with ham and cheese toasties. The cheese really helps to pair carbs. Mozzarella salads with rocket, tomato, balsamic and a few wholegrain crackers was another one I couldn't get enough of, eating a whole ball of mozzarella.
I always had something nice for my afternoon snack. I like to bake, so enjoyed using some of the recipes from gestationaldiabetes.co.uk. The brownies freeze really well! I loved the little almond cookies. It's a great website in general for getting your head on straight.
Dinners are easy when you get the hang of it! Yes you have to have less carbs but when else in your life are you going to be encouraged to have high fat meals? Massive bowls of creamy curry or chilli con carne with sour cream and avocado. You can still have rice, just a bit less (100g cooked I think was my guidline).
Bedtime snack will depend what suits you.
Basically, once you figure it out you'll be right as rain. I was eating about 2,500 calories a day, was never hungry and my skin was amazing. I'm out the other side, no diabetes. You'll smash this.