The best career opportunities have you doing both — earning and learning. Every career plan should have you doing at least one. You know you're in the wrong job if you're doing either.
For the startup of you, establishing a core idea to use as a career compass can be just as transformative. Before you have an external brand that people know you by, you need to have an internal brand you know yourself by. In other words, what do you care about? If you just have vague ideas, that's fine.