Somewhat similar story, (though I weighed a bit more). Went on a keto diet and got my blood sugar down to non-diabetic levels in three months (also lost a lot of weight).
But the type 2 diagnosis didn't feel right, and I pressed them for more testing, and found out that I was actually type 1. However, it's been four years now and I'm still not on insulin. Apparently the honeymoon period for adult onset type 1 is highly variable, and they don't have much data on it. So who knows when I'll have to go on insulin, but have felt pretty lucky so far.
The only downside to insulin for me is the cost and I'm pretty lucky. I buy my testing strips and pen needles from Amazon and spend $200 or so every few months when I need to restock. I signed up for a Lantus (slow-acting insulin once a day) discount card and am fortunate to pay nothing for it. Humalog (fast-acting insulin taken with food) costs $75-100 a month.
I go to the doctor every few months and demand free insulin samples when I'm there. I also got them to fill out paperwork saying I'm disabled (this is technically true by the letter of the law in the US). I used that to get a reduced fare bus pass and free entrance into National Parks. Figured I got fucked over and am going to milk what I can out of it.
Overall though it's not that bad. It's more of a hassle dealing with the routine than anything else.
But the type 2 diagnosis didn't feel right, and I pressed them for more testing, and found out that I was actually type 1. However, it's been four years now and I'm still not on insulin. Apparently the honeymoon period for adult onset type 1 is highly variable, and they don't have much data on it. So who knows when I'll have to go on insulin, but have felt pretty lucky so far.