Self help books for teen?

[QueenOfIce]

Just wondered if anyone could recommend a book for a teen who's experiencing changes. We moved, then a week later dsd mum moved in with long term partner and dsd. We all get on but dsd is feeling the changes and doesn't really like talking about how she feels. I think she worries she'll say something that will upset someone. (She won't, honesty is always appreciated)

I've been with dh 11 years, dsd Mum with her partner 4 years. Think the move so close together (which wasn't planned it just suddenly happened for dsd Mum as her house sold and was a quick turnaround) has unsettled her which is to be expected.

Any book suggestions would be great.