issues with braille screen input, again

Braille on Apple Products

okay, I always use bsi on my phone but lately I have had it inserting inserting things like the common sign when I am trying to erase something period currently relying on dictation because I don’t know how else to do period all over the place period need hel
sometimes it interesting is that I don’t want to enter which is very frustrating period how can I fix this? inserting