Please remember this is a family friendly forum.
Do you have a protective cover on your device? Do you have a case maybe covering the lens. Also have you tried cleaning the lens area. Compressed air perhaps.
When I first click on a pic at times it takes a few seconds for them to not be blurry.
Trying attaching a picture to an email and see if they appear blurry there. If they don't it is something with your photos app. Since they are sending correctly