Time and exposure is how to overcome your stutter. I hated high school. Sweaty palms waiting for my turn to answer a question every day. Horrible experience. Adulthood is way better. You've just got to ride it out until it doesn't hurt anymore. The absolute best thing you can do is not let the stutter impact your life decisions. Doesn't matter how scared you are of something. Do what's best for you and don't let the stutter decide for you. Good luck.