HELP! I broke my mom's computer!!!!?

HELP! I was just sitting down and my sister (annoying but it's my fault) unplugged it and ran and I have a huge temper, so I slammed the computer not hard but I was mad. And the screen broke when I got on again, I am so scared I am using my dad's computer, I fixed it to go on the TV, but then I got on again and it started loading and making weird noises. And now it says explorer.exe won't work HELP!!!