Is it possible to become an Olympian from scratch?

Question

Programming

I'm in eighth grade.
I'm going to major in engineering. At school, mathematics and physics cost 5, but I rate myself at 4 with a minus. Computer science is almost not taught (knowledge 0). I know how to write hallowworld in JS.
After reading about entering a university, I realized that it’s really possible to enter a prestigious university only through the Olympiad.
But I have never been an Olympian.
Tell me how to catch up and prepare for the Olympiads from scratch, advise good textbooks on these subjects. Thanks in advance.

Answer 1

I became the winner of the state Olympiads in Informatics from scratch (albeit in a state different from yours), despite the fact that computer science was not taught at all, and the opponents were quite well prepared. So what's the deal? Naturally, without brains, the result cannot be achieved, but the main thing was the desire. I really wanted to learn programming and purposefully went to this, which I advise you. Decide on the subject - it is important that it be interesting and passable for the specialties you are interested in at the desired universities and start studying. As soon as you realize that you have fully mastered the school course of your level, look for teachers who will help you study the subject at the level of the Olympiad, look for information on the Internet, solve problems from previous Olympiads, come up with similar ones for yourself.
By the way, I didn’t do all this, I just coded. And I managed to leave only on a good knowledge of mathematics and erudition or something - I was just lucky to know those things that were useful there.
Books, everything else is not something fundamental. Some things may be clearer and more interesting in one book, others in another, so read everything you find.

Answer 2

1. Transfer to a normal school
2. Spend all your free time solving Olympiad problems in computer science and mathematics.
Take literature on this topic, do it. If something is not clear - ask on the forums (dxdy for example).

Answer 3

Solve problems from previous years, preferably in Java or C++. The assignments are generally the same.
olymp.ifmo.ru/archive/problems