Learning to let go is perhaps one of the best gifts we can give to ourselves. Letting go of ANYTHING that hinders our health and well being....
It sounds like you need to find a way to let go of your shame. I personally believe the Lord wants us to let go of shame and it is designed that we can give it to God. Give it to God. Your wounds, both inner and outer can be healed. But, you've got to forgive yourself and let go. Let it go...
Holding on to shame for past deeds is like walking around shackled and in prison. Most of us know how that feels.
Tell yourself that you are worthy of holding your head up high and looking others in the eye and there's NOTHING to be ashamed of now.