Different people prefer different modes of career networking that play to their strengths. Introverts may enjoy publishing articles and joining online networking forums, while extroverts may prefer public speaking and group meetings of industry associations. Job hunting is stressful enough - do not force yourself to do things that deplete your energy, bore you, or ruin your mood. Timing matters, too. If you are not a morning person, skip breakfast meetings.
Great salespersons know that reaching quota requires volume.
For every 100 contacts you make, you might receive only a few invitations to interview. And from those interviews, you may net only one offer. These statistics can be true for even highly marketable people - success depends on finding the right fit for your particular aspirations and skills. Focus on making every potential contact a quality interaction, but realize that even quality interactions can fail to result in an offer if you haven't approached enough employers. In addition to applying for advertised job openings, craft an approach letter and sell the value of your potential contributions to employers who are not advertising.