Figuratively speaking, some days are so dark that it's difficult to see my hand in front of my face.  I'm sailing blind through a foggy night on rough waters.  One thing I do know on those days:  all that is important is to keep moving.  Whether through habit, or defiance, or just some remnant of momentum... keep moving.  Otherwise, one will never get anywhere.  At the very least, the rocks will decide things for you, if such is your fate. 

Best to meet Fate head-on.