Selling yourself is painful and failure can destroy your self-esteem so don't do it. Instead take this workshop from Better Work world and learn how to be successful without selling yourself. Participants learn how to be: 1) Effectively curious so as to learn things that will help them find work, and 2) Effectively generous so as to give the things that are most likely to return a reward (without being bitter if it doesn't).
Workshop participants break into groups to learn from each other and help each other find work. Employers and recruiters are encouraged to join the process so as to see how candidates interact.
Job seekers can pay to attend, be sponsored by someone, or attend for free by helping out.
Employers and recruiters can pay to attend and they can sponsor their top candidates so as to identify who has good interaction skills and as a way of helping the people they do not hire.
Because everyone is either paying something or working hard to attend you know it will be worthwhile.