[loceng]

You need to learn a balance that works for you. I have gone through long periods of hyper-thinking and it wasn't healthy overall, though I figured out a lot and I came through the other end; I have cycles like this and every time I am better prepared and it goes better each time. What I found helped the most is becoming better organized, feeling more comfortable with your organization - and this really starts with discipline, routine of discipline and of taking care of yourself and particularly of doing 'grounding' activities (that take you out of your head).

I wrote more thoughts on this a little while back ... http://mattamyers.tumblr.com/post/23794547268/routine/