horrible emotional state

Okay so today was a shitty day when it comes to my thoughts. At work I was thinking all these angry thoughts. Like, I was mad at men for being pervs, then at mum for not being supportive of me getting an education or at least trying to get it, then at doctors for keeping the blood type a secret form patients. And now I'm watching videos about cancer and still births. What the shit!? I'm not even around my periods. What's with the horrible emotional state?