New iPhone but all my pictures I downloaded are blurry?

Help! I just got the new iPhone5s and my pictures are very blurry. I tried going on to my Instagram but every picture is blurry. The People that I'm following have blurry pictures.

Perhaps you are not holding the phone firmly enough when you take a shot. If your hand moves, even very slightly, it can blur a photo.
The other possibility is that you are too near the subject and the lens can't focus that close. Try taking shots fro a couple of feet away.

You need to get more light.

iPhones (in fact all phone cameras) aren't good in low light. You will get motion blur or camera shake in low light - both will result in blurring. It can be pretty difficult to hold a phone still enough to capture a sharp shot. You might need to lean on a wall to steady yourself.

Also if you are too close to something, it may be too near to focus properly. That will also cause blurring.

Do you click the screen on what you want to focus on? And wait for the green box or cross hairs to light up?