hez, whatever you are feeling guilty about, try to resolve it in your head. I had to accept that I was a bad actor, but not a bad person. My drinking enabled me to do things I would never do sober, and then I would feel bad about myself and drink to forget/shut up the brain.
I can't unring the bell. What I can do is look at my actions in the light of my alcoholism and try to make amends where I can. Most people are willing to forgive if I indeed do change. If they don't forgive, then I've still made a great change for myself.