Here you are. Your game T142 played to T296.
With that, you can take AI capitals in 50 to 75 turns. Artillerys are enough for Sweden, Celts and Carthage.
Maybe you'll need Zeros for Iroquois.
Finish amphi and opera in Honolulu, after build Ermitage in Kyoto. You'll have to manage unhappiness when Celts reach its ideology if it's not order. Build Eiffel Tower it must be enough.
Look at your cash. Build stock exchange in Osaka after Artiilery. A cavalry is certainly needs to conquer cities.
To learn, look at Kyoto, what I build, trade route (2 for food for Kyoto), locked tiles for food end production. Specialist cause Secularism.
What I did ? Raze Samoa and Tonga. Go for Coliseum and Cirus, then Maximus Circus. Went for Public School, create a religion (Pagodas), made CSquests for Happiness and Culture. After Public School, reach artillery (bulbing GS) and Oxford for Radio for Order. I mind to take Autocracy. It were a few turns for building barracks and armories for tenet 2 happiness. Too long. I prefer have faster an Artillery army.