You use expression by explaining your feeling in writing form. Sadness is one of the most expressed feelings in writing. Here is a site to get you an idea if you want to write a story:
https://www.scoopwhoop.com/saddest-lines-from-literature/#.fs19fnc37
Hope it helps!!!
Oh geez,this went from me trying to answer your question to, im now asking a question.Im kinda confused because not all of them have commas.
Answer:
Change now to "at the moment".
Explanation:
then or at the moment are good changes of now into reported speech.