Book about overthinking and ADHD

Hello everyone,

I have a somewhat unusual request.

I suffer from severe overthinking and also have ADHD. Because of my ADHD, I have trouble reading books. I always start them, but never finish them.

Now, the overthinking (and Certainly also emotional dependency.) is really getting to me (especially in my relationship), so I'd like to give reading another chance.

Is there perhaps a book that addresses both of these issues and is also enjoyable to read?
Ideally in German

I would be very grateful for any suggestions!