If you're not a teen, it still pertains to you. Avoiding fights with your parents and your family makes life a whole lot easier. Sometimes just talking can ease the frustration and pain, and lots of times others outside of the situation have good ideas to help you. Sometimes you just have a lot of homework, but other times it may be because you have to many extracurricular activities or are spending to much time with friends and getting behind. If that's the reason then think about taking some time off your activities and allowing yourself more time to work on your homework and catch up.
Some people just get stress from the buzz of everyday life.
Watching TV, I would say, doesn't really relieve stress, it's just as fast paced as regular life and quite loud as well. Computers aren't a great idea either when trying to relieve stress. Save your Internet time for later, your email-pals can wait. If you're having a particularly stressful day something nice to do is just go home, prepare yourself a steaming bubble bath and slip in. Then cook yourself something nice like a chocolate dessert - no, now is not the time to go on an eating spree, just time to relax in the beauty and comfort of today's world.