Here is the “All the Way to Intermediate Course” Grace mentioned:
There’s about 30 lessons there, and that’s a good place to start. According to the ChinesePod Dashboard, a minimum of 50 Newbie lessons is necessary. Personally, I did around 100 before moving up to Elementary.
I’ll be recording a video in a couple of weeks, explaining how I used Newbie lessons. When I do, I’ll be sure to post it back here in this thread.