I Will Soon Be Teaching and Could Use Some Feedback!

I am currently a student at the University of Florida, majoring in Biology with a minor in Education.  I will be graduating in a semester or two and would love some feedback about the Education profession. If you could tell me:

• What you teach and the grade level?
  
• What do enjoy most about teaching?
• What do you find most challenging?
• If you could say one thing to an incoming educator, what would it be?

Thank you so much for anyone who responds!
Regards,
Kevin Rowley