Is my iPhone 5 broken or what?

I have an iPhone 5. Lately it hasn't been working right. It's been crashing apps within 3 seconds of clicking on them, none of my apps work anymore, I can't send iMessages/texts even when I have good reception/signal, all of my pictures in my photo album are blurry when I click on them, and I can't change my background. Does my phone have a virus? Is it broken? And is there a solution? Please help. It's really annoying, I've been turning it on and off to see if it will help, but it hasn't been making a difference.

I don't think you have a virus, unless you went on a suspicious site, but iOS viruses are not common. Have you tried clearing the apps in the background? You can contact by double clicking the home button and holding down on an app and click the x on the app. If that doesn't help I would bring it to the apple store and they will give you a new one for free.