Hi, I do not know what you mean by "only doing 3-4 cookies each decor", but a dozen practice cookies per order sounds like a lot. Certainly it would be tough to make money if you have to create that many surplus cookies per order and don't charge for that time. I'd suggest only selling designs you are comfortable making without much practice, so that you don't lose your shirt, so to speak. But allot other time to cultivate and practice new designs for selling. Of course, there are costs with this practice too, but they can be computed and spread as "overhead" into your overall cookie pricing, to cover the cost of practice time.