There are several things that could improve confidence in getting a job, some of them are:
Having a strong and relevant resume and cover letter that showcases your skills, experience and qualifications.
Networking with people in your field, building connections and learning about job opportunities through them.
Tailoring your job application to the specific requirements and qualifications required for the job.
Practicing for interviews, researching the company and preparing answers to common interview questions.
Staying informed of the latest industry trends and developments to demonstrate your knowledge and passion for your field.
Gaining additional skills or certifications that are in-demand in your field, to make yourself a more attractive candidate.
Building a strong online presence with a professional website or portfolio and active social media presence.
Keeping a positive attitude and projecting confidence during the job search process.
Practicing self-care and stress management techniques to keep yourself in a good headspace throughout the job search process.