now?

I was walking across campus today and was stopped by one of the education professors. She told me that she just got a call from a local high school that they are in desperate need of a math teacher for this semester. She talked it over with one of my other professors and they decided I would be capable if I wanted to take it. I wouldn't get paid for the classes I would be teaching for student teaching, but I might get paid for anything beyond that. Am I really ready to go solo? Actually, the more pressing question is- is it worth it? A semester of support from a teacher I get along well with vs. a semester of complete independence. I could do anything I wanted with this new position, but I don't know how limited I would be where I was planning to go. I don't need more decisions to make, I wanted decisions to be made for all the questions I already have...