How long have you been a diabetic? I am only asking because you have said you are low carbing and it worked before but not working now and you are still low carbing and your blood sugars are higher.
Keep in mind insulin does make it more difficult to lose weight, but high blood sugars are bad for you so it can be needed. The thyroid can also play a part in making weight loss more difficult.
But I like to tell everyone that if you are doing everything right and it's not working, you could be a misdiagnosed type 1 instead. Changing your diet or medications will work at first for a type 1/LADA because you still make insulin for a while until you slowly don't. That process can take years. Commonly needing insulin within 3 years of diagnosis is a sign of possible type 1. So if your blood sugars keep rising and you are doing things right, you might ask for antibody and c-peptide test.