This is why I always use a screen protector
This guy wants to put a protector over the scratch
If I didn't have a screen protector & I got a scratch on the screen , that would drive me crazy
I would focus on the scratch every time I looked at the screen
And I don't think apple would replace an ipad over a scratch on the screen after a month ?
So I always get a screen protector , the same week I get the device
Plus sometimes I resell the ipad if I like the newer one next year
Is as good as new out the box
Oh and to answer your question , since your new at this it's probably better if you have somebody else do it for you, go with ghost armor find a kiosk around your location
Check there site
Go for the full body
Edit : are we talking about screen protectors or cases ?