How to useful JR Pass

Hi, this is my iti
Dec 30 : arrived narita 6.35AM. better explore tokyo first or go directly to osaka the around osaka
Dec 31 : USJ (how to use JR from Osaka city to USJ)
Jan 1 : head to Kyoto ( should i stay 2 night, or 1 night enough)
Jan 2 : around kyoto and go to tokyo or better direct to yeti resort & kawaguchi go?
Jan 3 : disneyland
Jan 4 : disneysea
Jan 5-6 : around tokyo
Jan 7 : around tokyo and leave to airport 12.30PM , departure 6PM

Thanks
Tanti