There are thousands of students that enter college every year as undecided. I would say slow down here before anyone suggests taking a gap year. I would argue that gap years are even for students that are even more self-directed and have some idea of what they would like to do in that time, rather than merely a time for “soul-searching” which is honestly really chiche and there is no guarantee that taking a gap year would accomplish any of that.
Many students discover what they want to do by taking advantage of campus programming, going to the career center, talking to older peers, forming relationships with professors and other mentor figures, taking classes, summer internships, ect. You won’t have the same resources as you will have when you are in college and I would be wary of taking a gap year just because you aren’t sure of what you want to do, which is perfectly normal.