Travelling alone to Kythera

I have visited Kythera once, with my family in 1999. I am planning to return, alone, in May, and will stay in Pitsinianika, in the mepty house owned by my grandparents.

My main questions are; is it safe for a 20 yr old female to stay alone in a house on Kythera for a few weeks? and are there places where I can hire transport, perhaps a vespa, so I dont have to rely on Taxis. I dont know much Greek - should I study up before I leave?

Any advice would be appreciated, as last time I visited was in winter, I have no idea what to expect in the peak season.

Thanking you,

Renee