You should be testing an hour after meals, not 2, it's what (afaik) nice recommends and when I've been told to do. I have GD and am on insulin, have been since 12ish weeks and I'm now almost 20 weeks.
I've had it in my past two pregnancies from around the same gestation and also been on insulin both times. Sadly, I went undiagnosed with GD (so my consultant thinks), the pregnancy previous to those and I had a stillbirth at 37 weeks.
I am careful monitored now and am very careful with what I eat. I'm a size 8 and pretty much always have been, no reason for the GD that they can see and always comment on how unusual it is...not very helpful!
Insulin isn't all that bad tbh, you do get used to the injections and the testing becomes second nature. I do still get frustrated at times and upset about it all but I try and remember that it's for the best and that it won't be forever (hopefully).
I was induced with my dd3 at 33+ weeks due to the GD being unstable even though I was doing everything I could and that only took half a pessary. Long story but she ended up being born 45 mins after I arrived back at hospital after the inducement didn't work and they let me home for the night as scbu was full. She ended up in nicu on cpap for a while and around 2 weeks in total before coming home. The birth was easy, no tears and no assistance. She weighed 6 pounds as well!
Dd4 similar happened but a bit later, she had to be born due to the GD and this time I couldn't face the induction again (nothing went wrong with my previous one but I was having flashbacks to my inducement with dd2, who was my stillborn baby and I just couldn't cope with it. She had already gone so I was induced knowing that and it was just all too much) and so my consultant agreed to do a section. All went well and I was home with her after about 28 hours, her blood sugars were perfect after she was born, weighing 8 pounds at 37 weeks, and I recovered well.
This time I'm hoping for a vbac but it all depends on what happens with my sugar levels and growth scans later on. I don't put on much weight during pregnancies either, I have to eat more than I was before to get the carbs in as they want me to eat a set amount at meals and snacks.
Happy to help if I can and sorry for the epic post.