3.5/5.
What I loved about this book was the mental health part. I found her struggles with anxiety heart-breakingly powerful and well done.
If it may not be the best thing to recommend to someone struggling with mental health because of how Evie views herself and mentally ill people throughout most of the book, you unsurprisingly get beautiful, powerful and inspirational speeches at the end about mental health, acceptance, loving and taking care of yourself etc.
If I didn't particularly get attached to the main characters, every moment with Evie's little sister was beautiful and my favourite aspects of this story.

Now, this book wanted to be such a feminist statement.
And at times it said great things about women, but other times I couldn't help but roll my eyes or scowl because I did NOT agree with what they were discussing as feminism. It almost seemed like what the author was trying to say was : stay away from teenage boys. Even the mental health expert tells her not to date boys - just because it always hurts... What?

Other than Evie's little sister, the one character I was fond of was Ollie, but he got complety put aside and left over by the end, we still don't really know what went on with him. For those having read the other books in the series, does he get a mention ?

So there you go... A book that wanted to deal with important issues, but didn't work on every aspect for me. Won't be reading the books that follow the other girls, sorry.