Taking the heat

I'm not good at it... at all... It makes me cranky and easily angered and I don't like it.. murr... My family isn't good at living in the heat either my sister is screaming her head off because she's bored, my brother locked himself in his room because he's mad at my sister and I'm about to snap... grr.. I wanna go somewhere but it's too hot to go anywhere and my body is like in a "I don't want to move unless i absolutely have to because it's too damn hot" mode so... ahhh!!! I need help D: