I think that one of the most effective ways to grow as a catechist is to be able to observe another catechist in action. I learn a lot by watching the techniques that other catechists use as well as observing the rapport that they develop with their students.
Of course, arranging peer observation is not easy. For many of us, the only time that other catechists are teaching is when WE are teaching. That doesn’t rule out the possibility, however. Perhaps your DRE can arrange to have a substitute for you once so that you can go and observe another catechist in action.
Such observation works both ways. You can learn from the person you’re observing, and the person you’re observing can ask you for feedback on what you observe in their technique!
Of course, if there are various times that catechetical sessions take place in your parish, it is easier to arrange to observe another catechist in action.
When I was a high school religion teacher, we voluntarily began a peer observation program so that we could learn from one another and offer one another feedback. It was an excellent experience. I hope that catechists can do the same.