dude check out Skinomi Screen protectors on amazon it's amazing and extremely easy to put on, it's a wet application method where you spray the film with the provided solution
set it on your screen, remove any big bubbles,
leave your phone alone and in 2 days max
all bubbles/streaks will disappear
it's almost like magic lol, but i will say it's not fingerprint/smudge proof, but it's real easy to clean
oh and best part, it covers the WHOLE SCREEN including button area