I'm 33 now. I had a bad, bad stutter when I first was able to start talking. It's slowly gotten better as I've gotten older. Around my early 20s I was able to talk normally about 90% of the time. Now it seems to come and go, usually depending on how stressed I am. Some days I'm around 98% stutter free, some days it's a bit worse. Just practice and learn tricks and go to speech therapy if you're able.