Many courses have a list of recommended resources which you can access through ResourceLists@Bham. Dependng on your subject some list might be quite short with only a handful of items other may be very comprehensive with in some cases hundreds of items. Don't worry you are ot expected to read or watch everything.
ResourceLists are a great starting point for your studies but you should not only rely on the recommended material. You should learn to use Find It to find information for yourself from the many resources in the library and online.