My best bet is to ask others and I have always benefited from the random kindness of the strangers. I had quickly realized that the people with the green vest (some sort of officials connected with the underground system) were the kindest. So, I approached one and asked “Hi, Can I go to Victoria from here?” I got a big grin and a reply, “You can go anywhere you want!” And then he directed me to the correct platform. I thanked him profusely. I again was told, “The pleasure is all mine!”
I am really grateful to people who give me the directions, because without them, I am dead. And I do hope I will slowly get to go anywhere I want!