Hi and welcome to the forums. It helps people to reply to you if you can give them some idea of your condition - what your HbA1c was, what you eat, weight/size, what medication you take. Other health conditions might be relevant too - some people have difficulty doing exercise, for example.
Personally, I always found when younger that I could bulk up muscle easily through protein and exercise: I switched to a "healthy" very high carb diet as officially recommended in later life and became diabetic. Low carb/keto has been very successful since.
These forums are a great source of advice and support.