Kaliya, singer
London has won my heart. Before you go, check the internet for information about upcoming exhibitions and concerts as you may get lucky and visit some staggering exhibition or get to go to a concert by your favourite artist. Book tickets online, ahead of time.
Regarding food, you can find restaurants here for any taste or budget. Read reviews and avoid popular tourist places. Try the macarons at Ladurée; my favourites are the vanilla and caramel ones. Take the underground or an uber. An oyster card is the most convenient way to travel by underground, you can replenish it at the station or by uploading the app to your smartphone and if you have internet you can pay online. Buy a local sim card to access the internet or rent a router as you will always need internet but wi-fi is not available everywhere. Travel and explore this world!