I dropped my iPhone 5c and now it has colorful lines on the screen?

Now its really hard to use my phone and is there a way i can fix this? Or do i need to go get it fixed?

Added (1). Do I just need to fix the screen or get the entire phone replaced?

Just need to fix the screen.
buy a new oem lcd with digitizer for iphone 5c and replace it.it cost about $80