Just because people don't read it doesn't mean you're a bad writer. My advice is write what you want to. You'll have a better chance of writing if you write what you want to.
Don't delete your stories just cuz no one reads them. If people don't like your stories, screw them. And just because they don't read doesn't mean you're not good. Just write for your own enjoyment, or if you want real feedback, consult friends In Real Life. Remember, no matter what, don't stop writing-- it's the only way to get better. Don't let anyone take away something you truly love (unless, you know, that thing you love is an abusive substance or something ;) )