Your resume gives potential employers an overview of your education, work experience and skills. I would start by googling for resumes to see the different types of formats and styles that exist.
Create a word document that contains:
- your name
- contact information: email, phone number
- education: high school, college (include major)
- experience: any employment experience and include your title, the start and end dates and a brief description of your role there. If you never had a job before, I would include extracurricular activities that you participated in and any volunteer experience.
- skills: list any skills, which could include programs like Word, Excel or soft skills like time management, communication and leadership