One year since diagnosis, and a question about the honeymoon phase.

Pretty much exactly a year ago I got diagnosed as a type 1 @ the age of 22.

It's been an pretty easy ride all things considered. Counting carbs, adjusting ratio.

My question is how fast can you come off the honeymoon? I hear older peoples experience are less drastic, but today was the first day I woke up with a bg over 120 and i've been unable to getting it under 115 at all, with a high of 190.

My fast acting insulin ratio was 15-17g of carbs to 1 unit yesterday, and today it's already dropped to around 8-9g per 1 unit. Can it be true it changes this quick? Within 24 hours? Sleep's been the same, so have diet. I wanna know your experience.