"So, what do you do?"
"I'm a law student."
"I'm a management consultant."
"I'm a small business owner / entrepreneur."
And so on...
It is easy to define yourself based on your occupation. And social norms generally dictate that when someone asks you this question, they're expecting an occupation as a response.
It is much harder (but more interesting) to respond with open statements like, "Lots of things," and then commence explaining how you have a variety of interests, where no single individual interest truly captures the essence of your personality. (By this point, your conversation partner will have likely dozed off.)
Interesting people have, by definition, interesting lives.
It can be helpful to view life as a journey in which you can accumulate different 'titles'.
How are you going to re-define yourself?