Very, very well said John.
Benny, You are young enough to absorb what drastic changes can do to you. Don't let the comfort get in the way of doing something that will make you happier and healthier in the long run. Yeah, money could be tight for a bit but the future is there in front of you waiting for you to take that other path.
Unfortunately, some of us older farts cannot afford to take the risk. Quit the job and you might be one of the un-hireable pariahs. If I was younger and in the position I am in now, I'd have been long gone.