history: Tomorrow I start my new job teaching kids. I really hope it goes well!  Tomorrow I start my new job teaching kids. I really hope it goes well! Oh wow_comma_ now that really is exciting_comma_ congratulations! Did you get the grade level and subject you wanted?
current: I am teaching at a small private school, so I will be teaching all the subjects for 3rd grade. I am pretty excited, just nervous. 
next: Teaching little humans will be such a joy. I really hope you enjoy it!