Stress from changing life conditions can definitely bring back or worsen your stutter. I was made fun of in high school and stuttered worsened to the point where I wouldn't speak anymore. In college, people were alot more tolerant and I loosened up too and didn't stutter as bad but now pressure from work as brought it back again. Stuttering doesnt really go away or "cured" I would say try to de stress as much as possible and try to control situation that you can eg. Prepping thoroughly for presentations so you know your stuff inside out. Best of luck.