I moved six times between college and med school and had nine different jobs. I met many, many interesting people, had incredible experiences, learned a lot about myself, and developed the confidence to tackle learning medicine.

The ultimate takeaway for me? It's all temporary. Whether you're in town for a week or a decade, people will come into and leave from your life regardless. Parents are great, significant others make us less lonely—but at the end of the day—you only really have yourself to depend on.

You're describing feelings that make people lifelong students. "Comfort in a learning environment," translates into MD/PhD/JD/MBA alphabet soup behind ones name. Not that there's anything wrong with that.

For you I think, you've got to dig deep and find out what it is that you want. If you don't want to go into medicine right now, defer your acceptance and take a year to develop what you've started already. Otherwise, jump in, the water's fine.