Hey, I could give you a spiel about biochemistry of sorrow, or maybe it's your diet, maybe you need to look at yellow or be near water. Being a Christian I could suggest that you pray, which is good, but God never said that life wouldn't have sad bits. Sometimes you just go through parts of your life that suck horribly. I'm going through one now, sometimes it seems like the things that make you sad have existed forever, and will continue forever, but they won't. Persevere, there is always hope, God loves you and he will provide an answer for sorrow.