Today I have two good things.
I spent about 2 and a half hours helping a classmate who's having lots of trouble in my Calc 3 class. He seems to be understanding the concepts better now, and I'm hoping he can pull his grade up to pass so he doesn't have to retake it.
Then I spent some time playing with a little 5 year old boy who seems to enjoy music and actually listened when I was explaining some of the stuff of how a piano worked, how music was written down so that other people could perform it, and other things like that. He was mad that he had to go home, so he was obviously having fun, and he was learning stuff at the same time. So I felt pretty good about that.