I set up an online store page to prove him wrong and that I can be a success.
What are you proving him wrong about?
I need to prove to him that I can be respected.
Starting your own business can be a good thing. Belief in yourself can go a long way to helping you succeed.
I am trying to believe in myself, but he's being a real jerk and he wants me to fail.
I'm sorry that he's trying to make you doubt yourself, but I'm sure if you stick with it you'll do well. Ignore him and cut him out of your life if he keeps bringing you down.