I have terrible timing with verbal reflexes
What do you mean by verbal reflexes?
I tell my opinion when others might take it the wrong way
It's okay to voice your opinion, even if it's unpopular, but you should do so with a certain decorum.  You shouldn't just blurt things out in public, because this might upset others, or even make them angry with you.
I did it because I want to cause trouble. Is that wrong?
It is wrong. You need to control it and carry a filter over these words. One day someone who is angry could hit you for saying the wrong thing.