Congrats! This is my experience as well. Before needing to do public speaking, i am usually very tormented by the thought of it. However, my speeches usually goes well because of all the preparation work that goes into it. I would not want to do public speaking on a daily basis. I think for the infrequent stutter, we are too critical of ourselves and every stutter-slip we make, we think more of it than the audience. Again, congrats on the presentation!