June 4th - 11th: Arriving in Tokyo. Staying in Tokyo (Shinjuku District), Travelling around Tokyo
June 11th: Going to visit Mt. Fuji for half the day (Fuji 5 Lakes area or the Hakone area [haven't decided or looked into much details yet of which area to go]) then later on the day head off to Osaka (Umeda District), where I'll be staying and have my hotel booked for 11th-18th
June 11/12th - 14/15th: Osaka to Kyoto. Going back and fourth to visit Kyoto for 2/3 days.
June 14/15th - 18th: Staying in Osaka and flying out from Osaka.
I was thinking of buying a 7 day Pass from 11th - 18th. Where it consists most of my travels throughout Japan. Is it worth buying the JR Pass 7days for those travels?