Is it cheaper to buy the 7 day jr pass ?, Can i get away with it ?

Jan 5 - Arrive at Narita airport (around 2:30pm), go to the hotel and just explore the area. Hotel in Shinjuku, near kabukicho
Jan 6--Go to Shibuya,
-meiji jingu shrine around 1 hour , -shibuya crossing, - Shibuya Sky other stuff on owen’s list
Jan 7- other stuff on owen’s list
Jan 8-other stuff on owen’s list
Jan 9- day trip to Kamakura or other stuff on owen’s list
-https://gretastravels.com/kamakura-day-trip/ Jan 10- Day trip to Kawagukicho and from there maybe Chureito pagoda, some areas around Mt. Fuji / Hakone or other stuff on owen’s list
Jan 11th to 14th: Kyoto
Jan 15th to 18th Osaka
Jan 15-
Jan16-
Jan17- Day trip to Hiroshima then osaka
Jan- 18- osaka stuff
Jan 19th to 22nd: Tokyo/ up in the air
Jan -19 - fly from osaka to tokyo or train (looking like tickets are cheap around 60 dollar's)
Jan -20
Jan- 21
Jan -22

I was wounding if i can get away with buying the 7 day jr pass. Activating it on the 11th so it ends on the 17th. In tokyo will traveling to different location Be super expensive with out the jr pass. 14 day jr pass is $544.00 plus tax vs 7 day which is $340.00 plus tax.