I'm not quite your age, I'm 27. But I can sort of relate to the feeling of not having accepted it yet. I've stuttered since I was 2. While I've been very successful in my life thus far with finishing graduate school and working in health/science field, I still cannot fully accept the fact that I stutter. Like I just block it from my mind until I start to stutter and then I feel angry at the realization that this is a thing I will have for the rest of my life.