I was T2 for more than 10 years before concluding that insulin was the only weapon that would give me the control I wanted. Every case is different. Some people can maintain good control with diet and exercise, some can’t. This is a conversation you should have with your medical team; those numbers are definitely too high.
And you absolutely need to have the diagnostic tests for T1, as Marie says. There is an ingrained habit, widespread in the medical profession, to automatically diagnose as T2 if the person is an adult, without bothering to run the tests. We have many members who were originally misdiagnosed that way. See this post by one of our long time members.
And welcome! You’ve come to the right place. We’re glad you found us. 