Make a rough prototype out of paper and ripped paper and pencil. See how a couple of turns play.
You can certainly type up some of your ideas and run them by the anonymous internet for feedback. But +1 to getting out of the realm of theory and into the realm of hands-on. Standard playing cards, dice, tokens from other games as similar as possible to represent your concepts, sharpies on the poker cards for any special text you need (or standard note cards), draw a board on the back of a pizza box - quick and dirty components so you can see how your mechanics feel and work in practice.