[quote=@Etcetera]
<Snipped quote by DarkwolfX37>

What should be my next priority? Continuing to increase the size and speed of the Rasengan?
[/quote]

Next would be learning the next forms of the two techniques you've learned. There are various forms of chidori that manipulate the lightning in different ways, and a much stronger technique that comes from the rasengan. Specifically, the chidori current, releasing the lightning in every direction as a shield and offensive technique, and the wind release rasengan, by infusing wind into the rasengan to form a new one made of both chakra and air pressure.