Burnout is a cunt of a feeling. In my 15+ years of doing this full time(year round, I followed the summer over the globe) I've had it hit more than once. On one occassion it was so bad I took six months off, had no job, and lived with my parents. Another occassion I flat out refused to do anymore AFF(I kept getting all the problem students 'cause for some reason people thought I was good at it). Other times it's workplace politics.
Even if you get over this, be prepared for it to happen it again. Maybe for the same reason, maybe something else. And above all else, don't worry about walking away, even if it's only for a small time. The sport will be waiting for you if/when you come back.
I started working in the sport doing tandem vids at around the 250 jump mark. From jump 1000 on it's been over 95% work jumps. Looking back I'm amazed that I've lasted this long, but I've been blessed to work at good dropzones with fucking amazing people. No one needs to work as much as you are doing. As a wise man from Skydive New England once told me(here's looking at your Mr. Pot).."even porn stars get tired of fucking everyday"
edit: der spelling