First draft of my itinerary for March

I’m planning to spend a month in Japan, and this is my itinerary so far. I’ll need to do more checks as I refine it, particularly about the race tracks, as I couldn’t find an even calendar for 2023 yet. I still need to do more research regarding transportation, to see where I could use trains and busses, and where I’d have to rent a car. I’m open to making some changes to it, so I could use some feedback. Am I trying to do too much? Or is it too little and I can do while I’m in Japan?
Day 20 to day 24- I thought it will be busy enough, but it turned out I have a few spare days. Thought I could use that time to go from Osaka to Okayama, and Takamatsu , before arriving to Kochi. Would that be a good idea? Or is there another place I should visit instead (Is sumoto a good option)?
Is it better to get a SIM card at the airport, or should I wait until I arrive to the city?

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Day 1 (March 1, 2023):

Arriving to Japan, landing in Narita Airport

Day 2:

Tokyo, day trip to Motegi- Mobility Resort Motegi, Honda Hall Collection

Day 3:

Tokyo- Tokyo National Museum, Ueno Park, Marishiten Tokudaiji Temple,

Day 4 :

Tokyo- Asakusa, Senso Ji, Akihabara (UDX garage), Daikoku PA,

Day 5:

Leaving Tokyo, going to Fukushima- Ebisu drift taxi, Mount Adatara,

Day 6:

Fukushima- Drift lesson at Ebisu, Hanamiyama Park,

Day 7:

Leaving Fukushima, going to Gotemba- Komakado Kazaana Cave, Jinbayama Shrine, Seikoen lava garden,

Day 8:

Gotemba- Komakado Kazaana Cave, Fuji Circuit, Narusawa ice and wind cave

Day 9:

Gotemba- Fun2Drive,

Day 10:

Leaving Gotemba, going to Nagoya- Toyota Automobile Museum,

Day 11:

Nagoya- Toganji, Kakuozan Nittaiji Temple, Tsuruma Park,

Day 12:

Nagoya- Suzuka Circuit, Nagoya Castle, The Tokugawa Art Museum, Chubu Electric Power,

Day 13:

Nagoya- Toyota plant, Arimatsu Narumi Shibori Tie-Dyeing Museum, Atsuta Jingu

Day 14:

Leaving Nagoya, going to Kyoto- Samurai & Ninja Museum, Bamboo Grove, Maruyama Park, Kiyomizu-dera,

Day 15:

Kyoto- Hozugawa River Boat Ride, Tenryuji Temple Shigetsu, Arashiyama Monkey Park Iwatayama, Saga Torokko Train,

Day 16:

Leaving Kyoto, going to Osaka- Glion Showroom, Tempozan Giant Ferris Wheel,

Day 17:

Osaka- Mozu Tombs, Osaka Museum of History, Umeda Sky Building,

Day 18:

Osaka- Osaka Castle, Shitennoji, Namba Yasaka Jinja,

Day 19:

Osaka- Hoshida Park, Minoh Falls,

Day 20:

Leaving Osaka

Day 21:

?

Day 22:

?

Day 23:

?

Day 24:

Going to Kochi- Ryugado Cave, Shikoku Automobile Museum,

Day 25:

Kochi- Kochi Castle (Maybe better off Sunday morning), Okawasuji, Chikurin-ji Temple, The Kochi Prefectural Makino Botanical Garden,

Day 26:

Leaving Kochi, going to Hiroshima- Haigamine Observatory,

Day 27:

Hiroshima- Mzada Museum, Shukkeien, Hiroshima Castle, Mitaki-dera Temple Gem of Hiroshima

Day 28:

Leaving Hiroshima, going to Fukuoka- Korokan Ruins Museum, Fukuoka Castle Ruins, Ohori Park,

Day 29:

Fukuoka- Sakurai Shrine Futamigaura Torii, Shiraitono Falls,

Day 30:

Leaving Japan from Fukuoka