You will get better at it! I had to take public speaking 2 classes ago and I was dreading it! I have spoken in front of audiences from 3 to 150 people for work and I had no problems but to speak in front of 12 people in a classroom terrified me! Just remember, the audience doesn't know what you have planned to say so if you mess up or skip something, they will never know! Just keep plugging away at it!