Hi Dos,
You need to authenticate and set the default project:
gcloud auth login
gcloud config set project PROJECT
As mentioned, you have done the right thing, opening issue 120953373. The advantage is now that you can follow developments and instructions in the issue itself; you don't need to post things in parallel here.
Documentation is provided mainly as text. What would be the use of video for the two above commands? It wouldn't even show the face of a person. The text in itself is self-explanatory, without video support. As in case of all new projects, reading documentation is unavoidable, and no amount of videos can supplant that.