Could you help me with going out to London?

I'm a Hungarian loli and I'd like to spend a few months (or more) in London, but I'd need some work, like babysitting. Do you know about opportunities? Maybe you know families that need a governess, and I trust fellow lolis more than random companies that offer "help" but might be fake.
I speak English very good, I even write my stories in English, so what I'd need is to live with native speakers to get rid of my accent. I am a teacher by diploma.