Hello fellow 12Second year i am also hoping to learn cs if i pass this damn thing and if you already have some xp on programming that is really great. And here are some of the things i learned before even i join college(so i am not reliable) be ready to sacrifice a LOTTT of your time like 7 or 8 hr per day No one will teach you when you get there(depends on where you are). But it really needs self encouragement A lot of documentation reading and tutorial watching. Reading discussions and threads. Finally most of the Junk you will learn in the school or university can not be applied to the real world job. You will learn different ways to solve a problem using mathematics,algorithms and languages. But when you are out of the college that's a different story you will have to coup up with new and dynamic frameworks and programming languages. So to summarize it you will need lots of patience and as for the scores i am really sure they won't pressure us(or i hope). Hope u good luck