I have to entirely disagree with this. Talking about your ambitions before putting them into action diffuses energy with zero result. Unless some has a sugar daddy or sugar mommy who is going to try to buy success for you, talking about it ahead of time just reduces the chance you will actually do the hard work.
Talking about it is highly destructive.
Making specific requests from the right people has its place. I’d offer another golden rule though: never ask for what someone will have to refuse (even if they theoretically could give you that help). No’s damage relationships.