Commit.

There is only one way to Clean, Snatch, Jerk, etc as heavy as possible.  And it has nothing to do with thinking.  In fact, it has everything to do with trusting.  You've done the work.  You know to keep a tight midline with weight overhead, your weight back on the heels in the dip of a heavy jerk, to finish the 3rd pull of your snatch, to pull your ass to grass fast as shit on heavy cleans.  You know all of this.  Now forget it.  Trust yourself.  So slide on that extra 10 pounds, step up to the iron until your shins dig into the knurling, dig those heels in, set that grip deep into the first fold of knuckles and empty your head.  Then explode.