Even if what you're saying is true--which I doubt, if only because "got hired by Amazon/Facebook/anywhere once" is an incredibly weak greatest achievement--it's

Even if what you're saying is true--which I doubt, if only because "got hired by Amazon/Facebook/anywhere once" is an incredibly weak greatest achievement--it's not normal to think about yourself in such negative light. Seriously, talk to a therapist. You need to (a) make sure you're not feeling so depressed/inferior that your judgment is impaired, and (b) find the work that you're personally capable of that you personally find most impressive, and go somewhere that you can do it. To chase external affirmation that you don't think you deserve is a terrible strategy for your mental health, and probably not a great financial strategy either.