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!!!
The tone is reflective; words such as before and used establish this because they show that Anne is thinking meaningfully about the past.
General rules for changing direct speech into indirect speech. Omit all inverted commas or quotation marks. End the sentence with a full stop. If the verb inside the inverted commas/quotation marks is in the present tense, change it into the corresponding past tense.