Hi and welcome

Yes it can be done.  Press Nvda+n to open the nvda menu, then press p to open preferences followed by p again to open the Punctuation and Symbol Pronunciation dialog.  Note bang appears twice in the list, as a sentence ending and as a symbol.  Tick appears twice as well, as left tick and right tick.  Down arrow and When you get to an entry you want to change, press tab once to enter the replacement field and enter the word you would like to be spoken instead.  Tab to the OK button and press enter.  Repeat for all changes

Cheers

Chris