Parents have a lot to answer for

There are times when I despair as a mother. My youngest is angry a lot, she has been honest with me about my role in causing her anger. Of late, we have had sublime moments, playing badminton, hanging out and it feels as though we were getting closer. Tonight there is a wedge, driven in by me being parent, mother, disciplinarian. I have no idea what to do to undo this situation.