Theme
Boundaries and patterns
Parentification, people-pleasing, codependency, attachment, and emotional neglect.
Stepping out of the black sheep role
Recognising that you were the black sheep is step one. This is about the difference between undeserved blame and genuinely harmful behaviour, and what it takes to let go of the role without losing yourself.
Assertiveness: standing up for yourself without attacking the other person
Assertiveness is the best-evidenced foundation for setting boundaries. Not passive, not dominant, but the middle ground: expressing your need clearly and respectfully.