My phone is ghost touching without me even touching the screen

@mrsamsung if you are referring to things like opening Apps by itself etc, then the issue is most likely related to something called "Ghost Touch". It originates from a failure between the digitizer and the rest of the screen. You will have to replace the screen assembly. Since iFixit does not yet have a specific guide for this, use something like this video as your guide. Replacement screens are readily available but remember that the original AMOLED screen is fairly expensive. You may consider cheaper LED replacements. Just do an online search and select a vendor that appeals to you.

While you work on your phone, take lots of pictures. Once you are done with it, take those pictures and create a guide for iFixit. That will help the next person that has the same problem as you do. It's easy and fun to create these guides. https://ifixit.com/Guide/new The iFixit community will appreciate this.

Repair is War on Entropy!