Can I skip "she" next to "look like"? Because "she" is only appeared at the beginning of the sentence, and there is no "she" in "younger than me" and "weigh less than me". But suddenly "she" appears in front of "weighs less than me". Could you explain more about it?

Rebecca

We cannot skip "she" here. We use “look like” to talk about a person’s or thing's physical similarity with another person or thing. Because it is used for comparing it always needs to be followed by a pronoun of some kind. In this case that pronoun is she as we are talking about a woman. Ex: I look like my mother. Ex: You look like your sister. Ex: He looks like his grandfather.