I think the most beneficial thing you could do right now is realize that you are still the same person regardless of what happens. The stutter changed nothing about you as a person. It just now takes a little longer to speak in some situations. Most likely this was triggered by something, and event, situation, even nightmare sometimes and your subconscious just repressed it. (This is a whole nother talk to describe the relationship with repressiveness and stuttering) A stutter literally feeds of repressed emotion such as anger, embarrassment, anxiety, all the stuff you "don't want to feel" so you repress it. Freaking out about this stutter will just cause you to want to repress more emotion (unless you are consciously aware of expressing it) Realize you are the exact same person regardless and accept your current circumstance fully as it is right now. Whats the alternative? To resist it? That will just cause more tension to be stored inside of you. Accept everything and then do what you think is necessary to help you with this. (I'm someone who has overcame his stutter so if you would want help feel free to reach out)