Inspirational/uplifting books – fiction and nonfiction

I've been on a journey recently of working to improve my mindset and my ability to roll with life's punches better, as well as to approach the world with more positivity, grace, and compassion.

One of my goals for the new year also happens to be to get back into reading more, but I feel like a lot of what I've read in the past, while very good, was also quite sad/dark/heavy. Even if the books ultimately ended on a positive note, reading them was still often quite emotionally draining.

So I'm looking for some recommendations to build my reading list for the year to come in a way that aligns with my personal journey.

1. Fiction: Positive and uplifting, but not in a way that seems…shallow, maybe? Like, I'm not looking for a manic pixie dream girl protagonist who just flits through life in a quirky kind of way. I don't want "beach reads" or the literary equivalent of Hallmark movies. (Nithing wrong with those things! Just bit what I'm interested in.) Although I am looking for positive and uplifting, that doesn't mean it needs to be all puppy dogs and unicorns; I like realism and complexity. I just don't want something so heavy it's going to make me cry a lot, or feel angry or scared. And I definitely don't want the protagonist's primary challenge to be experiencing loss of a loved one or violence.

I do currently have a preference for female protagonists, but am open to protagonists of any gender. Time period, location, etc, don't matter – I'm just as happy to read about a modern protagonist as I am a 12th century Chinese protagonist.

1. Nonfiction: Like I said, I'm really working on changing my mindset and energy. Books on meditation, manifestation, energy work, etc are of particular interest. Whether truly self-help style books, designed to be guides toward achieving my goals, or biographies/memoirs of other people's journeys, I'm interested. However, one important caveat is that I am an atheist, and although I am very open to books about non-theistic spiritual practices (Buddhism in particular), I am definitely not interested in religious books.

Thanks!