@fatguy
I started at 275 now about 218 but was down to a low of 211.
I did it very simply. Walk, walk walk and walk some more. Did Keto with mild calorie restriction (cue the hate) but it worked for me.
I read Dr Bernstein’s books on diabetes which were my biggest help.
I don’t take insulin and my A1C was nowhere near yours but I got that under control. Fasting doesn’t work for me, I can’t control myself after. It was much easier to eat but just eat less.
Fortunately for me at the time my health care provider had a program to help lose weight. I saw a doc who was strictly for weight loss, was cool with Keto as it worked so well for me. Maybe you’d be lucky enough to have a program like that available. It was motivating knowing there’d be a weigh in every month.
The most motivating thing for me was my feet and eyesight, I like them and want to keep them.
You can do this, you really can!
Good luck!