I don't want to hug my mom
Why wouldn't you want to hug your mom?
This is just the thing, I hate her. I've decided never to go back to her.
You don't have to like your mom. You can distance yourself from her if that is what you like. But perhaps a hug isn't a big deal?
She is useless and doesn't deserve the attention. I am going to stay away.
It's generally a good thing to hug your parents, but ultimately the choice is up to you. It's important to take care of yourself and set  your own boundaries, as feeling negative can impact other parts of your life.