I'll be 39 in a few months and stuttering since i was 5, i would say that in the last 4-5 years it has faded away to a point where i stutter only when i'm **really** tired/stressed or when i am shallow breathing, and it is not even remotely as bad as it was when i was younger. Tips? Keep calm and breathe, 90% of people won't care if you stutter or just plainly won't notice it, the other 10% will use it against you the same way people use physical aspect to offend each other ,and don't ever stay silent because you are afraid of stuttering. Keep talking.