As a student who loves online classes and take them all the time, there are many strategies that I learned. One of the main keys to success in an online class is to be organized. Always keep up with the due dates and have them near your sight whether they are in your calendar or printed on your desk. Another thing to keep in mind is to set specific days/dates for the work/assignment you plan to work on ahead of time. It is easy to forget about your online class especially if you have other classes in person. Finally, contact your instructor all the time with any questions or situations such as illness. Your teacher is always there to help you and make sure you get the most knowledge out of the course and best grade.
In this video there are couple of tips I talked about and more in online learning strategies