Preparing for studying abroad in South Korea, what are some realistic methods?

Hello, I'm Chris from Colombia. I currently work as a logistics coordinator and will soon be transitioning to a data analyst role. I want to design a new life abroad. I'm considering Northern Europe, Australia, and Korea, with Korea being the most appealing. However, I know that moving isn't easy. I'm improving my Korean skills, gaining experience, and saving money. From my research, studying abroad seems to be the most realistic way to move. However, the tuition and living expenses are burdensome, so I need scholarships. I'm confused because some universities only accept applicants who are already residing in Korea. I thought foreign students could apply from abroad. Is it realistic to apply to Korean universities from Colombia? Are there sufficient scholarship opportunities for foreign students? I'm curious about specific ways to realistically achieve my goals. I would appreciate your honest advice and encouragement.