HOw do I get better break on my circle change

Im a freshman pitcher and our coach has us throw a circle change and mine doesnt move at all. how do i get it to break

Throw with more arm speed, pronate sharply as you throw and perfect your grip. Works for me, but I switched to a three finger change and got more break the way I hold it.

Thanks for the advice, Like i Said im a freshman but i can throwm a knuckle, Knuckle curve a 2seam and 4seam fastball, and a little bit of a regular curve

If you can throw all of those with accuracy and conviction great, but remember: quality not quantity.

i can usually throw m knuckle with good accuracy, but i dont always stay on top of my curve, but our coach doesnt whant us throwing curves until im a sophmore