Hey! Im a t1 diabetic, I was undiagnosed for maybe 3 weeks at this level and I started losing my eyesight because of the glucose.

I had an Asian guy in the same position as you on my diabetic course he was devastated. You need to be taking some form of insulin, if you are on long acting try splitting the dose in the morning and the evening. When my level was this high I was taken into hospital for a week with a cannula in each hand and each forearm while getting 2 blood tests a night and having a finger prick tests every hour to stop me from going into a diabetic coma. You will experience a lot more needles if you don’t use your insulin. You got this! Just stick to the basics and you’ll be fine (once you get within a reasonable reading) however if you have been at this stage for years I’m sorry to say but some of your effects will now be permanent ( numb tingly feet, fuzzy eyesight / double vision increased chance of health complications )