One of the most rewarding things I've ever done as a teacher is to mentor other teachers. When my district offered professional development some years ago, I realized it was the "something" that was missing. It was so exciting to know that I could make a difference in the life of a teacher, and thereby other students, to give help over the rough spots, and make this difficult job more do-able.
Does your district have a teacher mentoring program? How does it work?
Mentoring Other Teachers