Female solo traveler headed to Okinawa!

Hi guys, I'm about to leave for almost 3.5 weeks in JP! It's my second trip so I don't feel as much pressure to hit the sites.

Here's my itinerary:

Tokyo for 2 days, then Okinawa for 11 days (sadly during Golden week). 8 days in Kyoto then back to Tokyo for a few days.

I'm a little nervous for Okinawa — I have a rough itinerary that AI helped me make, but I'm worried about feeling bored/isolated. I wanted to go in order to get some beach time after a recent layoff. Any tips for Okinawa?

Also open to other tips you guys feel like sharing! Thanks so much in advance!!