i fulfilled my parents' dream?

i really am happy i fulfilled their dream and do u know what is that? that is going into first class. i can't believe it myself that i am in first class! i was scared when they called my name. really scared and i feel pressured. i can't believe it! i know they would be happy for me but I'm not. *sigh*
when i was in the class today i didn't felt like i was at home (which means i don't feel i belong there) i felt very lost. very stupid and dumb. i don't know why. can anyone help?