Books about focusing on your career, building self-worth, and investing in yourself instead of people who aren’t emotionally available

I’m looking for books that help shift focus back to myself building self-worth, confidence, and investing in my career and personal growth instead of emotionally chasing people who aren’t fully present or available. I want to regain my identity, feel grounded in my own life, and develop stronger independence and direction. Any therapist-recommended books that helped you prioritize yourself, grow professionally, and rebuild confidence would be greatly appreciated.