Okay this is silly ㅎㅎㅎ...

A lot of Korean people ask me how I speak Korean so well (I don't, but I'm better than they expect I suppose). And I want something funny/silly to say. Usually I say this in English but I want to be able to say it correctly in Korean.

The sentence is:

Well, one day I was eating Kimchi and all of a sudden I could speak korean!

Can I say something like:

글세요, 하루 (/어느 날?) 저는 김치 먹고있었다. 하고 갑자기, 한국어를 할 수 있었다.

이 문장이 맞는지 안맞는지 좀 알려주세요.

한국어를 잘 못 해요. D:

감사합니다 ^^