Deinstitutionalized player w/ lost track numbers

I’ve got the mp3 tag editor and copied all the files off my mp3 into a thumb drive and then sorted the files by artist album and track number.  The songs are now in the proper order.  So now what do I copy to my mp3 player to get the songs in the proper order on it?  Do I need to delete all the files off the mp3 player?  I appreciate all of your help.  Thank you and Merry Christmas