@frankie, ther are several ways to remove a stuck ball. The method chosen may depend upon how the ball is stuck and the quality of your ram rod.
Do search on the forum for grease video by member
@Idaho Ron. The grease gun always works.
The next is the situation where the ball is at the breech and there may be no powder or the flash channel is blocked or the powder is fouled. Your only tools are your nipple wrench and the dry powder you are carrying. Remove the nipple. If you have a pick, clean under the nipple seat and trickle in some powder. Reinstall the nipple and fire the ball out. A high-pressure CO2 ball remover is an alternative. In these cases you must make sure that ball is firmly seated at the breech.
Other methods of pulling rhe ball or bullet exist. I'll let you peruse all those pages on your own.