I think you should give speech therapy a shot. Even if it is for a few months just to try it out. Stuttering isn't going to go away by itself and it is only going to deepen any traumas you might have developed. I realized this at 15 and at 17 I got over my fear and even started talking about it publicly. My stutter is "Worry-Free" and completely unnoticeable to the casual listener. I would love to help you personally! Dm me if you are interested.