The article is exaggerating to make a point. It is usually, or almost always, true that people around you know more about what you should do in such situations than you do.
> people around you know more about what you should do in such situations than you do
Nobody knows the entire story of what you're going through better than you. People around you know bits and pieces. They do not have the time and energy to devote to your problems, they are making quick and dirty judgments. The often suggest something you've already tried. Or a solution they think solved a problem of theirs that superficially resembles yours. Or just what the current culture generally accepts.
And since we're talking psychology here I'm gonna go ahead and be keyboard Freud: saying that everybody knows better than you is just your low self esteem talking. I would have had a miserable life if I went with what people around me thought I should do.