Sorcress, what would I change?

There are a lot of things I would change in this book, but there is one main thing I would change. I would change the way that Mary's personality changes. I understand that when people get older they change a lot, but the way Mary changes makes it seem like she is loosing personality, she sounds boring and bleak. I lose interest in the story quickly. I think Mary's personality is guessed, not known, like it was in the first book (it was her journal). I think that with a new name, a new family, new surroundings, new point of views Mary loses her own opinions and feels like she needs to have the same thoughts as people around her. I know Mary is a strong and respectable person in her tribe, but she seems like she has little personality. I liked her in the first book because she wasn't as quick to judge, she was nicer and didn't participate in gossip around the settlement. Mary had plenty of personality as a child but lost is as she got older.