I'm one of those assholes who has to negotiate dates and times even 4 months or a year out. I live by my calendar and my schedule is always packed M-F.
Organization is the opposite of burn out for me. I get burned out when my day is chaotic and lacks structure. I've been in my field a long time and know how to work best for my needs.
i’d bet some big dollars that (almost) everyone who overworks and burns out does it from necessity rather than ongoing choice. i myself might have been the exception, and even still, i think few would ongoing choose to overwork.
Most I think, but there are also people who do it from self inflicted pressure. For example people who are blindly loyal to their company without realizing it will not go both ways. Or people who were convinced by their education that if they are not productive all day every day, they are wasting their lives.