Your questions make me confusing, though I will try to answer them. "If I should become..., what is it like?" If I should become nice, 내가 (만약) 멋있어진다면, If I should be like her, 내가 (만약)그 여자처럼 된다면,(You already look nice, Melike.) How is it? How is it to be a swimmer?/What is it like to be a swimmer? 수영 선수가 된다는 것은 어떤 걸까? How is it to have a home?/What is it like to have a home? 가정(집)을 갖는다는 것은 어떤 걸까?(가정=a family, 집=a house) What are the things you like and you hate? 네가 좋아하는 것은 뭐야? 그리고 또 싫어하는 것은?