*appears behind you*
Well well well, what do we have here?
So, is this your first time in Nin?
You get Shadow Clones by default.
And, if that's what you want, alright.
There are 3 stages in Rasengan, I am sure you know them from the anime.
First step.
*Gives you a balloon filled with water*
Use your chakra to blow it up.
Remember, you must use your control on the element inside, in this case, water, to make it jiggle violently in all sides and break the balloon.