I echo what Marty said -- insulin is not failure -- it is actually the most potent tool to achieving success.
I'm T2. I viewed insulin as a "last resort" -- complete failure and enfeeblement.
Boy how wrong I was! Switching to treating my diabetes fully with insulin and dumping all the T2 orals was the best thing I ever did. I'm healthier, happier, more energetic, and feeling better than I have in many years.
My a1c is now 6.0. I'm a tight controller. My goal is to get down to 5.5 this year.
And I pretty much eat what I want, within reason/moderation. Had my weekly In-n-Out Double Double treat for lunch today, never went over 140 postprandial.
Of course, there was all sorts of insulin involved :-)