As a mature aged student I had experience both with traditional and online university study before staring my online psychology degree. This gave me very useful knowledge about how to approach the online method and get great grades. So if you have not studied as an online student before it would be helpful to make sure you understand something about studying online before you start. There are a number of good books which can provide excellent study ideas and tips which can make things easier.
Also make sure you know how to access and use resources like the online library databases and online student software. Orientation week is a good time to check out the online resources before you start.
These two study tips will help speed things up for you during your study semester and make sure gaps in your knowledge about this way of studying won't impact your grades unnecessarily.