How Can You Become a Deity If You Don't Buy a Course?

The path to becoming a god is written in the heaven-defying peerless skills; But this is an era of apocalypse, and all resources have reached a bottleneck; The most important thing is that I am illiterate! Well, if I can't practice, then let others practice together. "Yes, yes, you can get free elixirs if you sign up!" "Yes, as long as you listen to my class, you will be promoted to two levels in a row!" "No seat, I am Tianzun's younger brother!" "What, you want to sign up? Dear Tianzun candidate, this is your exclusive benefit——"