What skills can I learn online as an 18-year-old?

I am taking my board exams this year, and I want to focus on learning useful skills that could lead to future job opportunities or freelance work as a college student. I want to avoid putting any more pressure on my family.

Is there anything specific I can learn that would be beneficial?

For the record, I've never been interested in coding and always thought it was something I wouldn't be able to do.