Viktor Frankl was a holocaust survivor who studied how people were able to survive in horrific conditions. I read his book, Man’s Search for Meaning, in High School and found it very helpful.
I also touch on Camus’ books: The Plague and The Myth of Sisyphus in this video. I mention my video on perceptualism.
If you’re interested, here’s the link. https://facingup.club/perceptualism/