Having changed jobs voluntarily after 8 years without much of a break, my advice to you is do absolutely nothing for 4 weeks minumum. Play golf, travel, whatever, but just enjoy 4 weeks of not having to be anywhere. You will find the effect on the mind and the body is astounding. When you finally get to the stage where you dont actually know what time it is, and dont need to wear a watch (about the 3 week mark) then, and only then is it time to consider going back to work.
Enjoy every moment of it!
Chevs may go, but theres nothing like a HO!
Proud LSUG Member, and 9" Nodular Iron driveline test pilot.