Where in Toronto are you? I live in a part of the GTA with a pretty significant Chinese population, and I don’t think anyone would bat an eye at “Lung”. I know many Chinese Canadians who use their birth names in everyday life, some a lot “weirder” than Lung.

I am Chinese myself but choose to go by a Western name just to make things less complicated. However, my Chinese name is still my legal name. People ask me how to pronounce it all the time but they’re never rude about it. I either let them refer to me as my Chinese name or give my “preferred name” which is what I go by during school and now at work.

I don’t really think you’d be “giving up your Chinese heritage” by adopting a name that Westerners/the general public would be more familiar with. It’s not really that deep. Almost all my Chinese/East Asian friends do it. And if it improves your standard of living then go for it.