From my experience of the half year that I went to college, no one laughed at me either and was patient. However I just felt so bad about it, I felt incompetent and stupid when I stuttered with groupwork or presentations. Even though I had really good grades. So it's more me, I know that. However still I feel like finding and working a job later will be very difficult and stressful. Are you still in college? And what do/did you study?