When I started to listen to the "manager tools" podcast, I started to get a much better understanding of corporate politics and it became easier to navigate that space. Jocko Willings podcast also has some insights how to deal with complex political situations.
For your mental health I can recommend some of the modern Stoic approaches to life. Most prominent candidate here is "A guide to the good life". Good luck.
"A guide to a good life" was the first book on stoicism I read, that link was posted before and led me to it, and it really helped me a lot. I would also recommend the "Tao of Seneca" 3 PDFs that Tim Ferriss put together, the audiobooks are great because you can easily listen to a letter a day which helps me to build the habit of following stoicism.
For your mental health I can recommend some of the modern Stoic approaches to life. Most prominent candidate here is "A guide to the good life". Good luck.
https://sivers.org/book/StoicJoy