I want to make my mom cry
Why would you want her to cry?
She won't support me financially and she always gave me a feeling of inferiority. I want to prove to her that her words and actions never took me down.
It's disrespectful to try to make your mom cry just to prove that she didn't get the best of you. Move out of your pride and let go of your vengeful feelings towards your mom.
I'm a grown man, so why should I do that?
If you are a grown man, then that means you should be acting more maturely. Your mother deserves more respect.