If you have not got the full progress for your unit or a chapter, please check if you haven't missed a quiz or an exercise which relates to the main resources.
If you have finished an exercise (e.g. watched a video) and you have not got any progress for the unit, try to click on the unit again and stay about 30 seconds on the site. Sometimes the system doesn't register your progress.
With the progress bar inside the unit you can check which units are unworked and need to be finished for the full progress.