The first step is to make a shoe last which is like a dress for for your foot. She shows you two ways to make your lasts. I didn't like either way so I decided to do it the sewers way and make "duct tape doubles" of my feet.
Wonder Woman boots - used craft sheet and red duct tape and the shoe part has an old sock covering it and then I duct taped the sock so I didn't ruin my shoe. Make sure to give room so you're able to take your foot out of the shoe and sock.