First thing you should do: try really hard to not have a bad attitude about it and think you’re screwed for life. It most likely started due to trauma, and you being angry and frustrated will only make it worse. I’m a lifelong severe stutterer, but I’m no expert. I’d say start taking care of yourself mentally and physically and I bet your stutter will get better and be very manageable. Don’t worry about, though, I am very blessed with a great social life—and I have days where I can barely say a few words at a time.