All the efforts you put into a job search are for one goal: to garner interviews that can lead to job offers. Just as you learned the strategies for job search, so must you learn the most effective strategies with regard to interviewing.
Effective interviewing involves both mental, as well as technical preparation. Most job seekers focus on the later but are at a disadvantage by doing so since mental preparation is equally important in fostering a successful outcome. Mental preparation involves envisioning success, as well as learning to deal with rejection and moving forward.