I almost hit a rock today, why am I such a bad driver all of a sudden in Journal

I was practicing parking on the ranch a bit today. Plenty of room. I usually park okay in the other car, but because my test will be in the main car…I chose it instead.
We havea curved driveway and I went a little off the driveway… But I kind of figured out how to get out okay.
Then when I went to back up and turn around I almost hit a rock. I may have hit it with the tires.
At one point I practiced with cones. Which I very rarely hit cones in the other car. Today I ran over the cones 5x, and dragged it on the first try. One of the cones died today. RIP. Disappointed in myself.