What I want to do after Senior High School

After senior high school I want to continue my study at university. But, I don't even know what faculty I want to choose. Actually I want to continue my study in Surabaya, at Petra University. I choose IT faculty. I want to join at IT faculty because in school the only one subject that I love is mathematic. The another reason why I choose IT faculty because I have bad memories. I always got a bad score in history, biology, and another subject that need good memories. The last reason is I like playing computer and my brother is studying at Petra University and he choose IT faculty too.