Grey horizontal lines going through screen

I recently dropped my iPhone 6, the edge of the phone is shattered but not many cracks going through the screen otherwise, I know that I have to get the glass fixed seeing as the glass is practically popped out almost. I can actually see glowing from underneath my screen if I tilt my phone to the side. The next day after I dropped it I got grey horizontal stripes going through my screen and occasionally my screen will go black for a second and go to the home screen then it's okay to use for a couple hours and it will do it againt. The stripe haven't gone away, but my question is, will fixing the screen fix this problem or is this a permanent thing? Or if it isn't can I still use my phone until I get the screen fixed or will it get worse?