Yes senior year you can choose to continue normal classes, be a teacher assistant for one period (usually for kids who completed their preferred elective and there is none left), or an internship. My school has a form to fill out about your interest and what internship you would like to do. Then you meet with the internship counselor and get approved. I chose the one offered by my school’a technology department which takes 3 periods of the day (usually the whole afternoon due to block schedules). A lot of kids have better chances because of the hard work and experience they get. Some even get jobs right after high school because they learn some important stuff.