Saman paap concerns acknowledging a mistake and considering repair. Regret can draw attention to something important, but it does not by itself tell you what the other person needs or what can now be changed.
A useful response might include an apology, returning something, correcting an account of events or changing a repeated behavior. Some consequences cannot be undone. Responsibility then involves being honest about those limits as well as about the action itself.
This square does not assume you are guilty of something. If the theme fits your question, focus on a specific event rather than treating your whole identity as the problem. Repair is easier to consider when you can name what happened.