Once you have logged into Lobster Ink you will notice a large course card at the top of the home page.
This course card will feature a title saying Current Course at the top left-hand corner. As the title implies, this is the current course and will require your immediate attention.
You will have to successfully complete this before you are able to unlock any subsequent courses on your learner journey.
Thereafter, you will notice that you have a number of available courses, all of which you will be able to complete eventually.