Learning is a lifelong pursuit. Knowledge is available in many places, and the more you learn, the better you can understand the world. Just graduating from high school or college does not mean your learning (or studying) ends - it just takes on different forms, of your own choosing.
What is unique about the operations part of my job for the Mars Exploration Rover is that I will be doing on the spacecraft what I do with my digital camera at home - download the pictures and delete them once I've got them on my computer. Data Product Management is pretty much the same thing, as we delete data products (pictures and other files) once they've been received on the ground. As such, I will be generating and uplinking sequences of commands to the rover each martian day, and monitoring the execution of these commands as they happen onboard.
I love native plants, and my yard consists of mostly plants indigenous to Southern California. They're so easy to care for, since they're adapted to the climate. I also swim laps and do yoga regularly, and enjoy cooking flavorful vegetarian meals for my family and friends.