Once inside the Create mode, tap on the World button in the top toolbar to open the World info screen

Then tap on the Camera button on the bottom left

A preview of your video recording will appear, you can watch it and even edit it if you like! 

Tap on the Share button in the top right corner once you are ready!

You can add a title and a description. Finally, tap on the YouTube button to share your video and that's it, you're done! Good job! How To Create a YouTube Channel If you don't have a YouTube channel, feel free to create it - it won't take you more than 2 minutes! You can name your channel such as "The Sandbox Nickname" (replace Nickname by yours, of course, :p)