You can read a book called "The No Asshole Rule". It can explain better than I can how to deal with a toxic work environment and how to contribute for a better

You can read a book called "The No Asshole Rule". It can explain better than I can how to deal with a toxic work environment and how to contribute for a better one, starting by explaining the actual cost of toxic behavior. Personally I am still working in not being a jerk at times.