No, you do not. I would say you just need to find your niche, meaning what grade levels you are more comfortable with, and that is what will work for you, and being in front of a class becomes easier with time. I sometimes speak too fast, say “um” a lot, forget what I’m saying, forget what words come next in a sentence, so it’s all good. We don’t expect our students to be perfect, so don’t expect it out of yourself either. We can only do our best.
Teaching In Real Life 