There is no "normal" stutter. My parents say I didn't always have it, but I don't remember a time when I didn't have it. I will say to push through. Fluency comes and goes for me. I have good days, good weeks, hell even good years. I'm 39 and have learned to live with it. I've had public facing jobs, been married twice, have kids, etc. You'll be OK. As my grandmother use to say, "at least you weren't born without feet".