I believe that you are indeed in not only burnout but also in severe stress and in situation where your hands are too tied and hence feel both immensely helples

I believe that you are indeed in not only burnout but also in severe stress and in situation where your hands are too tied and hence feel both immensely helpless and deceived. This is the vicious cycle which will cause not only mental health issues but also feed constant burnout. I was also in similar situation and I indeed complained a lot, like everyone called me the most pessimist person in existence and some of my friends intentionally avoided me. While I got some therapy which immensely helped, it is also important to find out about why you feel helpless and if something bad or regretful happened to you that left you scarred(took the therapy to realise and distance myself from that abyss…). Rather than complaining, I eventually came to accept that the world is not just(read about just world fallacy) and everything is the way it is and will continue to devolve into more degrades state due to constant chaos nature of everything. All that is left to do in power is to enjoy myself with my family and friends and not try to save the world to enlighten others about obvious issues of the society and everything(believe me most everyone also sees and knows this but tends to be busy with their own life and tomorrow instead of getting down about the sinister nature of the world).