Hate what you like

I love to read. It is one of the few joys I have in my life currently, it is also one of the reasons why I choose to see another day, but I have troubles controlling my anger and any high set of emotions even happiness can turn into anger. Say if I'm sad, or happy it can suddenly without warning turn into rage. And it's extremely hard not to destroy things when I'm angry so I usually destroy myself. And for some reason I can't seem to control my emotions after the sun sets. I feel spontaneously depressed or angry at random times of the night. I like the darkness but because I can't effectively control my emotions I'm starting to hate the night. And right now it's winter where I'm at so night comes early. But this happens in the summer as well. So I have no idea what causes it. I can even stare at a wall, just listening to my breathing when suddenly negative thoughts and just pure hatred will flood my mind. I don't like this.