In my opinion If at first you don't succeed try try again.
It does depend on how old you are (don't throw the curve until probably 13 at earlierst). If you are older though it's a great pitch, almost too effective so that pitchers focus on it too much and loose their fastball.
Anyways, I spent the greater part of my spring 13 year old season trying to get my curveball going. More often then not it would go over the batters head, often a wild pitch. However I did keep working with it. Having a couple coaches help me and some other things.
Come allstars my curve was dominating, no 13's would touch it, and the freshman 15's were hitting harmless balls into the ground. I got to a point and still am at where I can/could throw it in a full count or for a first pitch strike.
The curve is something you have to work with, since it's anything but natural (thus the stress on the arm), however unless you throw straight gas with a good changeup, your going to need more movement then a cutter.
Also if your under 17 or so I would really stray from the cutter and look into the curveball, the cutter is much like the slider, and puts incredible stress on a growing arm.
You've got all winter to work, best of luck!