I'm going to get angry at my mum over a pair of heels
Why are you mad over those heels?
I wanted to use them when she went out of town and could not find them anywhere.
You should not be angry with your mom over a pair of shoes. You can buy your own footwear if you like and keep them safe.
I was like really mad over those heels. I feel really disappointed in her and angry. I hate my mum. There is no reason for her to lie about those heels.
It is understandable to be upset that you couldn't use the heels when you wanted to use them but you cannot be angry at your mother forever. It was wrong for her to lie about it but being cross at her instead of talking to her will not make your relationship better.