Very nervous about to begin an MBA

Very nervous about to begin an MBA Hi I am 25 years old, migrating to the United Kingdom, to begin study for an MBA (Said Business School, Oxford) I am relatively scared/nervous/excited, mainly because of my stutter, and moving to a foreign country, I am originally from New Zealand. I understand MBA programs have a lot of presentations and seminars and this is what worries me the most, my stutter flares up the most during these events. I would say my stutter is mild/moderate in general, the more I think/premediatate what to say, the more it flares up. To the fellow professionals/graduate students, any advice/tips on what I can do to manage nervousness and anxiety better.