Is it possible?

I do not want to offend any true wake surfers here, but we are just getting started and already dropped some good money on the boat and other equipment this season. Can we surf on a $20 beach souvenir store skimboard?

My other option is a used kids surfboard around 5 foot, but it would probably have significant curve to it and a surfer friend explained that I would need a flatter board for wake surfing.

Any ideas or advice?