Don't use random and complicated sentence starters if you're not comfortable with them; it'll be worse to pause thinking of a starter rather than saying something relatively simple like quant a moi. Speak in front of a mirror to get used to looking at someone instead of staring at your notes - your teacher might try to help you with gestures etc. Also conjugate pouvoir and vouloir before the verb you want to use so you don't get stuck on conjugating.
Mine's next week as well so good luck!