Why is my GS4 is typing uncontrollable letters when i type?

Whenever i try to type on my phone lately, the keyboard is almost useless. if i type even remotely at a normal speed its as if my finger's "tap is teleporting all over the keyboard and rendering my messages incoherent.

EXAMPLE: ill talk to my friend and say, "Hey wesley, how is your band doing? i didnt make it to your latest show but i really would have come if i wasnt working" but with my keyboard it says (this is a copy paste from my phone i emailed to myself trying to type that) "Hey wesley2I'mduy how has your VA nfb been doin gnome lately? I didnt make it t I your latest sgwobevsi if no by if i r I uls have c I me b if i wad b rt we I rking."

its absolute garbage, and i cant even use talk to text to compromise anymore because 9/10 times i press the mic button, the banner with the speech button lock onto my screen and will only go away by restarting (but i'll ignre that issue because if i could text i would have no use for it"

I have a pretty good knowledge of my phone and its inner workings to dont be afraid to go tech savvy mode if you need to, ill follow along to the best of my ability.