All you have to do is restate your topic sentence but in a different way and make your point more clear.
a figure of speech which makes an implicit, implied or hidden comparison between two things that are unrelated but share some common characteristicssimilea figure of speech that makes a direct comparison between two different things with the help of the words "like" or "as"<span>onomatopoeia</span>
To do so, I guess I'd say use proper grammar and format.
Although your sister isn't someone to write formally to, if you write properly it's good to do in the end
Lol i assume this is what you mean?