Exit mission: 집을 사고 싶어서 일 많이 하고 돈을 모아요. '모으다' conjugation을 잘 몰라서 이걸 그냥 해봤어요. 잘 못 했으면 알려 주세요 선생님 :)

모두 좋은 주말 보내세요! Tried to fix my sentence here with the correction as well.

형제자매 중에 언니 세 명이랑 오빠 한 명이랑 쌍둥이언니도 있어요. 저는 막내예요.

I thought I had an okay understanding of 은/는 and 이/가 , but after your explanation 선생님@Goeun Kim I'm worried I've had it backwards. Originally I thought of it as someone saying how they do something and if I'm offering how I do it differently, I would use 저는, meaning "as for me, I do this". The way I understood it, was that it stresses the subject of the sentence. With the new understanding you went over in the video, I get that 저는 de-emphasizes the subject portion of the sentence while emphasizing the vacation time. Can you give an example of using 제가 to do the opposite?