Clinical psychology is ridiculously competitive. I know students with similar profiles who applied to 10-12 programs and were shut out. So I would say 4 schools is far too low; I would aim for at least 7 programs. If there are only 4 programs that are a close fit, your research interests may be too narrow; consider broadening out to related areas where a professor could still mentor you, or where you might need two co-PIs.
You’re pretty much an average applicant. It’s common in clinical psych for students to work as a research lab manager after college, or some other research position that gets them a little more experience. Some students do make it in after undergrad.