It's interesting to see that the other guy thinks that it must be inherently Chinese roots when there are many different cultural groups in your part of Russia that go back thousands of years. Anyhow, hope you're well :)

Sorry, but there is some Chinese blood in you, otherwise to have learned Chinese at your age, seems to be quite a feat, if you don`t have Chinese heritage at all. Well, this is not important at all. Enjoy those 3 languages, then.

By your looks, I can tell that your parents are Chinese. Nowadays Chinese is a great asset. Enjoy both of them, but don´t forget that English controls the world.

Russian and Japanese, two difficult languages, you are lucky to combine them with English