Yes but I had to go onto insulin a year after initial diagnosis, as the Gliclazide they put me on just wasn't working. What changed with the correct LADA diagnosis, was the type of insulin regime I was on. As a supposed Type 2 I had four years on Novomix 30, which is a mixed insulin that I had to inject twice a day. Once I was diagnosed as LADA, I was changed to MDI (Multiple Dose Injections) or what is mostly referred to as basal/bolus regime. Although I found this tricky to adjust to and I now inject 5 times a day, it does offer more flexibility and I think the change was beneficial to me.
If you are worried about having to accept going onto insulin, please don't be. I was terrified of physically injecting myself at the beginning but I can honestly say that is not something I worry over at all now. It's just part of my life that is as normal as brushing my teeth. Progressing to insulin, much as we'd all like to avoid it, is SOMETIMES unavoidable, for SOME diabetics. I felt a failure for progressing so quickly to insulin but I now realise it wasn't anything I did wrong and it's one of my main concerns for those who have to follow this route, that they are not made to feel failures for something their body just can no longer do unaided.
Good luck with your appointment next week. I hope you can get the tests you need.