I think that if I ever have kids, and they are upset, I won't tell them that people are starving in China or anything like that because it wouldn't change the fact that they were upset. And even if somebody else has it much worse, that doesn't really change the fact that you have what you have.
And all the books you've read have been read by other people. And all the songs you've loved have been heard by other people. And that girl that's pretty to you is pretty to other people. and that if you looked at these facts when you were happy, you would feel great because you are describing 'unity.