It doesn't sound like you have a compelling reason to go to graduate school, so why do you think that's the best option and only option you're asking about?
Do whatever you enjoy. There are plenty of things to do for several years before med school. Just live like a normal person and work, volunteer, hobbies, travel, etc.
I worked full-time in the field of my degree (not a science) for 3 years before going to med school and I loved it. It was also nice to have some money saved up before taking on loans of med school.