I do wonder if you're spreading yourself too thin and not focusing on nailing one or two jobs you're really interested in by applying to so many places. I get that it's a numbers game so I truly understand and salute the effort, but I wonder if being rejected from hundreds of jobs is pointing out that something needs to be adjusted. I recently spent a few months finding a job and landed one I'm really happy with. I'm happy to provide feedback and advice if you're interested. Contact details in my profile.