You take up to 6 months to do each full course with a small test at the end of each course to make sure you understand what you have done. This test is sent back to me by email and if you pass you will receive a certificate saying that you have done the course and have passed.
 
 

Now if you have trouble with a lesson. You email me about the trouble and I will give you step by step interactions on how to understand it better and help you with the lesson.