Sannah, maybe this relates: for me, the worst time of getting through something hard is right before it's over--I "choke." Sometimes it's fear of failure--that I didn't do what I wanted to when it was all a dream and how I thought it would be, but sometimes it's because I am tired and know that I don't have to be wonder woman the rest of the way: that the end is in sight, and it's going to happen without much of my participation, so I can give in to the blues that come with either of the above.