I'm on the same boat. I needed this and was about to write similar post yesterday (but got too tired).
This year has been pretty rough at work for me with today being the worst (so far). My best office buddy/colleague left for another company last week - good for him as he is now in very friendly space, it's hard work, but whole different league in terms of company level. So we're one person down, more work to do and no replacement in sight. I still have two other colleagues which I like as my siblings, but... Our boss is such a trash person! He's selfish prick with unsatiable god complex, never admits he's wrong and boy oh boy, he's wrong a lot. And it's getting worse and worse as he gets older.
So thank the OP for good read of some positivity, which is pretty much lacking in my day to day basis.