No Mud, No Lotus, The Art of Transforming suffering by Thich Nhat Hanh. It's obviously a book about Buddhism in general but the "transforming suffering" bit is about letting go of past traumas and chasiing things like money or power or possessions, and being happy with your life in it's current state.

I'm on a break from therapy for a while and I find meditation and journaling to be very helpful.

Write the sad thoughts to get them out of your head. Turn the page and write about a happy memory that is special to you. Write about the people in your life who are close to you and what you like about them.

I listen to podcasts that focus on good mental health and that also have a guided meditation at the end.

It felt like a bit of a slog at first, but I found it really comforting once I got further into it and started reading about the part I was interested in getting to, which is how to start on the path to being a more mindful and grateful person in my daily life.