Yes, teaching for the first time can be daunting. You have done your training; you have your Certificate to prove you are prepared; you have passed the job interview and got the job! And yet you feel somewhat tense, a bit insecure, excited of course, but mainly SCARED! It’s normal.
This ICALwiki article has useful tips on how to cope with nervousness and anxiety, and fight those first time jitters. Learn here how to relax and learn techniques that will help you enjoy your first time teaching.