Is it wrong to want to do well in life so that I can gloat over other people?
What exactly do you want to do to them?
I want to do well and show off to my friends and bullies from high school that I can hear and speak English fluently.
Trying to do well in life just to gloat over others isn't appropriate behavior. People will not respect your accomplishments and will think that you are a shallow person for attempting to gloat.
I guess that's fair.
I knew you were a sensible person. You should find another source of motivation for success other than gloating over others. Take solace in knowing what you achieved and that is enough.