Burn out looks different for everyone — what the symptoms are and how they manifest — but my experience says that once you’ve started to feel true symptoms of burn out, you are probably past the point of being able to solve them inside your current circumstance. I took a month off and it made zero difference. I physically and mentally could not summon the energy to keep going inside of Facebook. I had to leave in order to reset. I actually strongly believe that allowing myself to get burnt out shortened my work-life span at Facebook by a couple years.