There are tons of people who stutter in college. People in college are mature and know what stuttering is, at least in North America. For most of us, the biggest thing that's holding us back is ourselves. Please see an SLP and do some research regarding acceptance of stuttering. I personally know people who stutter who work as doctors, teachers, college professors, engineers, financial advisors, and journalists. If they can have a career, so can you. If anything will hold you back in college, it's your writing and grammar.