I will only be able to work on my online coursework when I have time here and there. Will that be a problem?

Only if your schedule prevents you from regularly engaging in your courses. Online courses offer students a lot of flexibility with their schedules. However, each online course will have a specific structure (usually a week-by-week format) and a schedule with specific deadlines for activities, homework, and projects. Some courses may require you to login and take part in online discussions 3-4 times per week. Sometimes you will be required to take part in a synchronous activity (via Zoom) at a specific time on a specific day.