Hi,
Sorry about your eyes. Don't blame yourself maybe it can be fixed again. I don't know anything about diabetic maculopathy, but I just wanted to say that when I was diagnosed with diabetes my eyes were in a terrible state. It happened over a course of months and in the end it was so bad I could just about make out the giant tv two meters in front of me. My HbA1c was 91 at the time, and after my blood sugar came down again my vision went back to something resembling normal. So things might get better for you. And be careful with Dr Google, it's always bad news.
What about the insulin, are you on fixed doses? You would get better control with a basal-bolus approach if that would be possible.