Does anyone know what this is??? TMI

TMI WARNING

If you don’t like gross things on the tongue please don’t look or ignore.

So it all started with one on Wednesday 3/30/22. I thought it was just a canker sore so I put salt on it and the next day it multiplied. I tried hydrogen peroxide and it got even worse. Has anyone had this before? I don’t go to the doctor till Tuesday and it’s killing me to know what it is. Please don’t be mean. I just wanna know what it is.