Hi Yvonne:
1. You have to believe in yourself and your ability to teach.
2. Positive affirmations can help, sort of mental "self-speak" that provides self encouragement and inner stregth
3. Competence leads to confidence. Really, they go hand in hand, one leapfrog ging over the other.
4. Face reality: You have skills, education, training, experience, and know your material. Now remember, most of your students don't come even close to what you have to offer.
5. Go with the flow. It's only natural to be a little hesitant to take command and control over the activity of others. So relax, be calm, and be willing to laugh at how silly some things are, or even if you make mistakes. Students will appreciate a teacher who will admit mistakes and enjoy the humor of a situation with their class.
6. Share stories. Students like stories; it keeps their attention and interest. Soon, they'll be looking forward to comining to class.
Good Luck!
Regards, Barry