When did you start showing?

I haven't actually shown yet since my horse went lame last fall when we were working on stuff. He's good now but with school I didn't have the time and now with the rhino outbreak I might not get to show him this summer like I planned. I am bound and determined to show at least once this year though (I'm 21 so it's about time!). I've ridden some of my family's show horses to exercise them but our trainer shows them right now. After college (and after some cutting lessons) I'll be showing them with our trainer.