If you're looking for a job, reach out directly to the employer. The way it usually works is that employers post positions that are open and available on their own websites. So when you see an advertisement about an opportunity at this company, send them a regular email or LinkedIn message asking if they have any jobs open right now. Not only will this let you make your application stand out from every other person applying, but it'll also help you qualify personally with the hiring manager in case there's anything in your resume or cover letter that needs correcting. Give yourself more of a shot than just waiting around for somebody else who might be more qualified to land the position. It's time to find out what the employer values about you.
Now, this is not a fool-proof method. It's just something you can try as a last resort. The worst that can happen is that they don't reply or respond at all. However, there are other methods of applying that will greatly increase your chances of securing the job. For example, there are certain online platforms that allow you to gather more information about the company than normal job applicants would get through the mail or on their websites, and this increases your chances of getting hired outside of an open posting. One example is called Glassdoor where users can leave reviews about their jobs and employers and even rate them anonymously for risks and benefits. You should also know that more and more employers are starting to use behavioral interview questions. These questions test the applicant and give insight into their skill sets, how they think, and what they're comfortable with. One of the best ways to overcome job-search anxiety is to learn about the things that set you apart from your competition and what you can do to improve your chances of getting a job.