K.C.
M....I have the greatest thing for you. I have 2 boys ages 9 and 6 and they both did this and both of them where very hard to potty train. And my 9 year old was even almost 4 when he finally got fully potty trained! What I had to finally do was get a "treasure chest" and fill it with very little treats and some small toys from like the dollar store. And everytime they went on the potty they got to pick just one thing out of it. This started to work and they stopped crying everytime they where on the potty! And within I would say a month or so we no longer had diapers or pullups. And then I still used the chest for good behavior. Good Luck to you.
K.