How does holly kennedy fits all these post-traumatic growths

Question

Problem: How does Holly Kennedy, in the movie P.S. I LOVE YOU, fits all these post-traumatic growths?

Relating to Others characters(s) with a brief explanation

New Possibilities characters(s) with a brief explanation

Personal Strength characters(s) with a brief explanation

Spiritual Change characters(s) with a brief explanation

Appreciation for Life characters(s) with a brief explanation