My iPhone 5S is ghost touching after 6 screen replacements
So back in October for my 14th birthday I paid £70 for a iPhone 5S which just had a cracked screen. When it had a cracked screen it worked fine until I got the screen replaced from a phone repair shop.
I had trusted this certain shop because my brother had recently had his grey iPhone 5S screen replaced there and he had no issues whatsoever. When I got my phone back it had a tempered glass screen protector already put on the screen, when this screen protector was removed the phone would tap on things where previous fingerprints were. I've had this screen replaced 6 times with 3 different brands and even an Apple OEM display and it is still ghost touching without a screen protector.
I read somewhere that this issue could be caused by a defective battery in which my battery sometimes dies on 20-30%.
How could I fix my phone?
Is this a good question?