i think it time to call it a day on this course, three time i have tryed but Ben gabbles to fast and changes the names of scrips, i have sight problems and it moves to fast in places, when you are teaching you have to consider that not all students are the same, you have to explain your every movements and not just rely on people been able to read whats on the screen.
Slow down the video, or pause it do what you can and then go back. You have also managed to make it this far so how have you managed already?