Have you tried using agencies like headhunters or temp agencies?

Have you considered getting a few business mentors to help you improve your new job/career prospects? Some might require payment (such as those who are career or life coaches), but others may just offer you free advice as mentors. Both, together, might be able to assist you with your job-hunting strategies and your anxieties surrounding impostor syndrome. Therapists might help a little with your anxieties, but you might need an actual hands-on coach (at least for a short time) to help propel you in the right direction, and with enough self-efficacy, mastery, esteem, courage, and confidence to get you to where YOU want to go (not what others see in you, not what others expect or demand of you, and certainly not from guilt trips others may place on you). Your career/job is your life! The great walk-out is now being discussed among the masses, who are fed up with being mistreated or undermined or underpaid or overworked or endangered. They are now reinventing who they are, following their own dreams and passions, and not going by political economics. Instead, they are following their dreams and sticking to their own self-boundaries. The days of finding a job for years-worth of stability and biting your tongue for the sake of not burning bridges is over, or at least it is changing. From what I hear, there's a revolutionary approach afoot for finding new jobs and demanding the pay and work conditions you need and deserve and want - all three in combination and unison, not just one in sacrifice for the other. This revolutionary change - most likely stemming from this pandemic, but also for many years prior to that - is changing the ways in which employers are managing their subordinates, are hiring, are setting salaries, are being more inclusive, are being more open and fluid to applicants with new types of interview answers, are understanding of many different generations and backgrounds, are understanding of those who want both short-term and long-term work experiences, are understanding of those who require more flexibility with families and work-from-home job requests, and are more flexible in terms of past job experiences and higher education accomplishments. Many employers now understand how expensive it is for some to achieve higher education, so they are willing to conduct on-the-job training, which might work to your advantage, depending on how you present yourself. Because the old-school way of interviewing and resume-writing has changed (as I sorely found out when I attended an undergrad college in my 40s just a few years ago), it might behoove you to find a mentor or other resources to help you.

You have many skills that you can use to find another job or career. You can also do some things in the meantime to add on your skills, such as taking a free MIT courseware class online and getting a certificate (they offer some new programs, databases, and other interesting courses for free or at low cost). There are also similar courses offered online through Harvard. My mentor and friend, who graduated from Harvard, showed me their website. Having accomplished those in lieu of getting more hands-on experience or another degree might actually improve your resume and your chances of advancement in your field or in a different field. For disabled persons or those who need rehabilitation in order to get back into either grad school or the workforce, these are excellent options to demonstrate your motivation to move ahead and learn while also being thrifty about how you spend your money and time in advancing your skills. It shows your good economic and business sense doing that, which puts less pressure on society in some ways, which could be an added plus to mention in interviews - depending on the political nature of that particular company.

Doing research on the company you are applying to also helps in this day and age. If you know the heritage and even political stance of the company, or even its nonpartisan stance, and you agree with its operation standards, work culture, and political leanings (including contributions it makes to certain venues in society and even certain charities), that would be an excellent talking point in your interview as well, given that values are being taken into consideration for hiring these days, unfortunately and fortunately - depending on how you view this and what your views are. And herein lies the importance of finding mentors and even paid coaches to help you.

Overcoming impostor syndrome isn't easy, but it truly does take more than talk therapy and coping skills when you need that extra coaching or that extra mentorship to guide you in specific arenas, and to streamline your success in much quicker ways than psychotherapy alone can offer. If you can afford it, do both psychotherapy and coaching (both at-cost) while also finding mentors (professional or personal or both).