How did it go?
Keyhole is set up different in different places. Here it's drawn with chalk and looks like a keyhole, a short chute into a chalked circle, run in, turn, run out without putting a foot on the line. The chalk freaks a lot of horses out. Was one of my favorite classes growing up, I used my reining horse for it - run, slide her in, roll back and beat feet out :)
Life is like a camera. Focus on what's important, Capture the good times, Develop from the negatives and if things don't work out, Take another shot.