How do I relieve stress?

Ok I live with my mom and my stepdad, and I feel like ripping their heads off sometimes because when I try to explain something they say **** like "your arguing" and will ground me, then I yell at them so they will listen to what I have to say, I can't explain something without yelling at them, and I get so mad I want to take a crowbar, and beat their faces in until they cry and listen, how do I relieve stress?