The classic book for teens (e.g. very vintage- LOL) is Highly effective habits for teens. I read it 20 years ago but it is still valid today and it has been revised
Younger female pre-teens (9-11 age) recommendations: The American girls books are wonderful. I have a few favorites and would love to hear which ones you like and which ones you rather skip! Here are a two of my favorites: The care and keeping of you and Drama, Rumors and Secrets
I have not read this one yet...but it is on my list. It is supposed to help with those annoying emotions or thoughts that take a hold of our brain Stuff that Sucks
Worried about how you look? This resource may help
Are you cutting? If so, use the free app "CALM HARM". It is highly recommended and effective! Apps don't substitute therapy appointments but they help support you in between appointments. Here is a video explaining how it works
My favorite book for parenting teen girls is Untangled. Lisa Damour addresses issues that every teen goes thru and gives tips for parents. Parenting boys-- Wild things was a great read. This is a Christian book with tips and suggestions on raising boys.