I have a non-binary friend who is extremely rude so I have stopped using the correct pronouns
Does your friend care that much for the correct pronouns to use?
No, it's because my friend is incredibly rude about it and is always mocking me about it.
Even if your friend is rude, you should still use the preferred pronouns of people. It is a matter of respect and kindness so you should try your best to do it.
Nope. I have no pleasant feelings towards my friend, whether they correct my pronouns or not.
Even so, just try to be politically correct and be the better person.