Chance me

Hiii, Im currently 12th grade student, but I realized the importance of choosing a university quite late, so I haven't prepared for IELTS or SAT. I really like KAIST, so could I dedicate this year and next year to studying for IELTS and SAT before applying in 2028 (i need such a long period as i've given up English learning for a 2-year time)? Has anyone ever finished their first year at a university in their hometown, then applied to KAIST and gotten accepted?

My profile only include second prize in the national chemistry olympiads and I wanna apply for chemistr undergraduate in KAIST.

I really appreciate any your infor and advices. Grateful!