How guilty have you felt?

Funny question, I suppose, for a new year. Perhaps it is worth looking back as well as forward.

I’m wondering how heavy guilt has weighed upon you? What did if feel like? If you care to talk about it, what did you do that made you feel this guilt? What consequences resulted or what did you do to deal with the guilt? Do you keep a guilty secret to yourself? Confess? What? Are there some guilts that you think can never be removed?