Her husband walks in while a roomful of people are chanting on a video and tells her she has joined a cult. She laughs, concedes that some of it does look a bit cultish, and writes the post anyway. That willingness to name the awkward thing carries through everything else.
A three part sequence works from purpose to vision to goals, in that order, and will not let you set a goal until you can say what it serves. She insists on writing it on a card you carry around, and on being specific instead of general, because general goals hand you general results.
The happiness piece is the one that stays with you. She spent years assuming happiness would arrive alongside the next event, then noticed people in dire circumstances who were cheerful and people with everything who were not.
One practical post covers using hashtags without irritating anyone. Start with purpose and vision if you keep setting goals you never reach.