Some resources you may find helpful:
Tara Brach
Podcasts, Facebook page, workshops, books
Books:
Radical Acceptance (2004)
True Refuge (2013)
Radical Compassion (2019)
James Hollis book
Finding Meaning in the Second Half of Life
Janina Fisher book
Healing the Fragmented Selves of Trauma Survivors: Overcoming Internal Self-Alienation (2017)
Christine Ann Lawson book
Understanding the Borderline Mother: Helping Her Children Transcend the Intense, Unpredictable, and Volatile Relationship (2000)
Albert Bernstein book
Emotional Vampires (2012)
Melodie Beatty book
Codependent No More: How to Stop Controlling Others and Start Caring for Yourself (1986)
Dr. Shawn Ricks Facebook page