i like cautious's reply, jen. we all make bad judgement sometimes. none of us are perfect in that regard or anything else in life. do speak with someone you totally trust or your T. either can also give you suggestions irl of how you can resolve this guilt you have.
i am in recovery from alcoholism. they offer a suggestion to us...we "take a moral inventory of ourselves" (which you have done), it's one of 12 steps toward being a better person. another step after that one says "we make amends to the person we have harmed" ORand this i believe applies to you..except when to do so would harm/hurt that person or others. there are ways to overcome the guilt if it would hurt a person by telling them we are truly sorry bout what we did wrong. one way is to resolve to make amends by trying to become a better person re what we did. like not repeat the same mistake. it can resolve your guilt by doing so. this way of resolving guilt by things i do wrong leads me in a healthy way of righting a wrong.
i hope that perhaps my comments may help.