Hello,

To become a computer engineer it would be best to have a B.Tech degree in CSE. And to get into a good Engineering college you need to score really well in the corresponding entrance exams like JEE Mains, JEE Advanced(for IITs),VITEEE, BITSAT, etc

So if you are in school i suggest that you start preparing well for the entrance exams, and in the meantime do some courses like a course on basics of computer programmimg, basics of Python, etc so that you keep yourself interested and motivated.

Good LUck