I Can't Sleep When I Have Too Much On My Mind

Sometimes after a long day, despite when you think everything has been okay the last few years, months, weeks, or days, there comes a time when you just stop whatever you're doing and just think of the hard and sad days. Currently, no matter how happy you are, you just start to cry.
You feel pity about yourself and you feel bad towards other people. All the bad, sad, pitiful things that had happened in your life, it just arrives in your thoughts in just a few seconds and starts to cry again, and again and again. Then you wipe out your tears, and this heavy feeling in your heart that never seems to disappear is back again. Yet you're tired and you just want to sleep but sleep won't seem to visit you tonight.