How do I go back to my last lesson without having to go through all the previous lessons?
I may be wrong here, but I think when you have taken the quizzes, and go to School of Pipsology, it takes you back to where you left off.
Please make sure you are logged in when working through the lessons and marking them complete. Once you return, simply log back in and the School of Pipsology will have remembered what you completed on your previous visits (as long as the lesson was marked as complete). Let us know if you are still having issues.