Mayella makes her final speech. what does she reveal about herself? what are her reasons for saying all of this?

Given that this scene in To Kill A Mocking Bird was all about how Atticus made Mayella angry by being respectful, and kind. 

When she made her final speech; Atticus knew that she wasn't telling the whole complete truth. Which reveals that she is more scared of her father than the law and that she rather lie to the jury than suffer the consequences.

Her reason for this is because her father was a cruel man that ran his home with an iron fist. This showing why Mayella is so unaccustomed to Atticus's kindness, and respectful words

Here is a link if you need more information
https://www.enotes.com/homework-help/why-doesnt-mayella-tell-truth-trial-what-does-401341

I hope this helps! Please let me know if I was right or wrong
 Please let me know if I was right or wrong