Lost motivation this close to the end

I was enjoying a nice rythm of writing earlier this week, I actually reached 37k, beating my previous longest story by 10k. But something happened in real life, knocking me off balance. And now, I am maybe 2 or 3k from finishing and it feels like the hardest thing ever. I know how it ends, I just can't focus on it. I edited for a while, and that worked for a time. But I am back at the end, and it won't come out. I really want it finished, it almost feels like a weight now, instead of something fun. Any words of wisdom for me?