Way to get around london how and saftey?

sorry, 'London' and 'safe' do not go together well, I live in London, and there are some weirdos out there so especially since you are both teenage girls, you need to just stick together and stay on busy roads, get buses and trains, they are the only way really, you could get a taxi, but you need to make sure you book it through a trusted company, some of them are rapists who pray on people like you.