Generally, resumes are filled out from high school, then universities, then graduate students and so on. Employment experience begins with internship.
Resume is a brief introduction sent by job seekers to the employer. It contains basic information: name, gender, age, nationality, native place, political outlook, education background, contact information and work experience.
You can write about your major, school experience and honors. After graduating from high school, I am a university. I can write about my study: school, major, degree, foreign language and computer mastery. My simple experience since I entered school is mainly about social work or joining the party group.