How to stream live video on YouTube?

Please see the video guidance, and review of the stream Live Video process is correct.
https://www.youtube.com/watch?v=76HtGVE7bL4

RECentral 1 operation process,
https://www.youtube.com/watch?v=KPnEfdMOECo&feature=youtu.be
https://www.youtube.com/watch?v=o2SfTChr-Dg