My fill valve in my toilet is Korky brand and when I take off the cover to the fill valve it shoots water straight up. Is there a way to fix this or do I just have to replace the fill valve.
Why are you removing the *cover* on the fill valve? That thing was never meant to come off. I hate to say it, but I think you just destroyed your valve. Go buy a new one, they are cheap and unless they went through a redesign since you bought the last one, the seating tube coming into the tank doesn't even need to be changed. Lefty loosey the damaged valve while putting slight pressure in the downward direction and it will pop out. Just install the new one and don't forget the overflow tube connection. Throw the rest of the stuff away, you won't be needing it (if for some reason in the future you do need it you will never find it again anyway).
Find out the source of the squirting water, you may still salvage the valve by just deflecting the water with an ordinary material like a plastic bottle cutaway assuming your level control valve is in perfect condition. Or to be safe just buy a new valve.
lol! I think someones done a prank on You!