What do I do if the back camera on my iPhone 5 won't work?

I dropped my phone on the back and the back camera has been acting weird ever since. It happened last month but it would still work if I pushed on the top of my phone and I would be able to take pictures but they would be a little blurry but ever since today the back camera won't work at all. When I open my camera app, Instagram, snapchat it goes right to the front facing side of the camera and won't even let me change it to face the back camera. I tried resetting my phone, deleting and installing the app, pushed on my phone but nothing is working. Should I take it to the store or is there something I can do from home?

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