Feeling Nervous

I’m feeling a bit nervous about tomorrow.  I was a teacher until about the middle of the last school year and needed to resign from my job to take care of my daughter.  I recently filled out an application to be a substitute in that same district.  Things wax and wane with my daughter, therefore I can’t have a regular everyday job, so I thought that this could be something for me to do when circumstances allow.  I will have my first substitute job tomorrow (actually in the same school I taught at), but for me I have the first day of school jitters.  It’s so weird.  After 15 years of teaching I’m nervous.  I’m sure everything will go well.