What would you do all Saturday if nobody paid you and nobody saw it? Start there.

Strip out money and audience and most motivations leave with them, which is exactly what makes the question worth asking. What remains is the small set of things you would do for their own sake, and that is the most reliable clue you have about where your attention naturally goes. It is not a career plan. It is a starting direction, which is more than most people are working from.

Give one Saturday to it, with nothing to report and no photos taken. Notice what you drift toward when nothing is asked of you. Then arrange a little more of it next month.