I am one of the very, very short line of people who actually read the book so…
here’s the answer you are looking for.
One major theme from the novel Monster is that people are capable of change. This is seen when Steve changes his way of thinking about himself and others around him. He begins to see that people are not defined by their mistakes and that everyone is capable of change. "I realized that it was never too late for me to change the way I saw things" (Myers, p.193). This quote shows how Steve has realized that he can change his perspective on life and that it is never too late to make a change.