Alright, Suigetsu. Time to learn a jutsu!! *yay*
First thing's first. Here's a stone. Try to change its shape into a cube, a pyramid, whatever. But you have to let your chakra soak into it, don't force chakra into it.
Here's a hint that most people don't realize:
In order to make chakra circulation ideal with jutsus, use both of your hands at first. This creates a complete circuit of chakra, putting chakra in from one of your arms, and back into your body through the other. When you get more advanced and have better chakra control, you can do it with one hand.
So, using both of your hands, channel (but don't force!) chakra into the stone to change its shape into some other 3-dimensional figure.