@JoeCo , we've all been through that why me, it's for life phase, and it still comes back to haunt us from time to time, but, believe me, we all eventually come to terms with it.
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@therower says, it's got to live with you: get used to the fact you've got to make a few accomodations like carrying sweets around with you, tweaking your sugars every now and then, and then just carry on as you did pre-dx.
The way I look at it now is that my T-cells did a bit of accidental friendly-fire on a bad night on my beta cells, so a bit of my body is no longer working. So I need to help it out now. It's part of me. I don't hate it: I co-operate with it, even though it can be a bit of an unruly teenager at times.
You say it's life long. This is going to sound a bit harsh, but it's with the best of intentions. If you had been dx'd before the 1920s when Banting and Best discovered insulin, that DKA which hospitalised you would have killed you. It still does in countries where the government is too pathetic to organise basic health care. Or at best, you'd have been put on a starvation diet with highlights such as "thrice-boiled cabbage". Sure, it's life long, but the point is, unlike pre-1920s, you're getting to live your life instead of dying.
Read the book by Thea Cooper, Breakthrough... It tells the story of the discovery of insulin, with a bit of politics thrown in, in the shape of Charles Evan Hughes, a prominent US politician at the time, and his T1 daughter, Elizabeth. The writers found a letter by her where she writes a letter to her parents about deciding to take her first self administered shot instead of having her nurse do it. She writes that she's decided to be the "captain of her own ship". That 14 year old stepped up to the plate in days when T1s had to re-sharpen their needles, boil them, and had to more or less guess on the uncertain potency of insulin. For hypos, "the feels", she takes some molasses, "a kiss".
Sure, it's messy, but after reading that book, I'm grateful I'm T1 now and not then. Live your life.