When I was young, around 11 or 12, I went to therapy and it helped a lot. I almost became fluent. But then it came back in a year and we couldn't afford therapy again. Now i'm 23 and started therapy 4 months ago but my stutter's still getting worse. The blocks are v long and jaw gets locked till i run out of air. Tried 2 diff therapists but to no avail. I'd recommend it still as its worth a try.