"is it normal that i would think in my mind go fuck yourself?"

Alright, let's start from the beginning. Throughout my life, everyone has had great expectations from me in a short time. Every time someone would ask me an impossible questions, I would ignore them and let out a streak of curses in my mind.

First example: I start to learn a new language, Spanish, at school. After a week, my parents want me to write an upcoming book report in Spanish. I ignore them and walk away, vivid in my mind.

Example 2, I study for my SATs for a week so far and my friends throw a random word at me they randomly pick out of the dictionary for me to describe. They expect me to know every word known to man since I've picked up a SAT study book. Instead of saying "I don't know" I would tune them out and tell them to "Yea, go fuck yourself!" in my mind.

I mean really?! I would answer them after I found out about it. But it's annoying! So, here's the question for you guys. Is it normal? Should I break this habit and deal with being surrounded by "geniuses"?