my phone has been glitching and idk how to fix it !! :(

theres gonna be a lot of typos in this si bear with me :\

idkk what e happened really but theres a strip all the way up my phoe where nothing workis, like that part of my screen is almost dead ?? it wirks sometimes but for a while i couldnt use it at all, and uts messing wioth my keyboard as you can see XD itll start typing thungs im not even close to or even when im not touching the keyboard.. i have a liquid screen protector so idek if i can fix that but this is really bugging me !!!! the most likely reason i can think of is that i got hair dye on the screen but its not like i let anything just sit on the phone >:(