tired

who ever said that life as a teacher is easy is definitely wrong. this week i've been evaluated 3 times. the first day i was down because of the feedback i got from my lecturer. the second day i improved tremendously and i enjoyed my time with my students. it's got to be that magic of song. i was really satisfied and I could see that my lecturer is happy - she's great, keep on supporting me. today, maybe because i'm burning out already and i haven't had much rest for 3 nights in a row, i could feel that i was off my game. i didn't do well. and due to that vibe i gave, no wonder my students were quiet too. i tried to no avail to get them to speak. what should i do??? i must admit, in terms of preparation the third round was not so thorough. i was just too tired. i couldn't take it. Ya Allah, please give me the strength to do this. make me strong. i want to be a good teacher.