Does anyone have advice for getting over paralysis after so many rejections?

I’m not sure if this is the right place to post because everyone is struggling, but I feel really lost and like I have to do something.

I’m 31, and I feel like my confidence and ability to get an offer has become worse than it was when I had no work experience at all. I sometimes get interviews, and have often got to the final stages, completed the presentations and other tasks they’ve sent, only to get the old “we decided to go with other candidates.” No other feedback.

The problem I’m having at the moment is that I become sort of paralysed when I try to update my CV because I get so many rejections upfront with no feedback that I don’t know what I’m doing wrong, and I just don’t see the point. I do have ADHD and a history of burnout and depression, so I guess that’c contributing to it. I know logically the only way I can get a job is to apply for jobs. And I do have a career history of working in large organisations and working my way to leading large teams, so it’s not like I’m completely useless. But for some reason I’m at a point where I can no longer update my CV at all because I just seem to get rejections even if I take hours to tailor my CV and use chat GPT (but don’t paste blindly from it). Sometimes this has even happened when I apply for jobs I’m overqualified for. I feel like I’m just doing the same thing over and over with no results, no feedback or lessons learned, and it’s like the definition of madness. And every rejection has just reinforced the belief that it’s a waste of time.

I get that the job market is bad at the moment and I just have to get on with it. I guess what I’m asking for is how do I get past this paralysis and get into a rhythm of just tailoring and applying instead of just getting completely paralysed and feeling like everything I do is wrong, and end up doing nothing? This is specifically at the tailoring CV/submitting stage. I browse and bookmark jobs every day, make notes, sometimes even feel pretty optimistic about certain roles, but when I actually pick one to work on it’s like my brain just dies.

I’ve used Chat GPT for advice and I have shortlisted jobs, have broken the tasks down into small steps, but then when I try to work on them the paralysis happens, because my brain is like “this didn’t work all the other times so how is it going to work now?”

TLDR: Got to a point where I feel completely paralysed when trying to apply for jobs after so many rejections – does anyone have advice for pushing through this feeling? Advice, books, resources, tough love, I’d welcome anything. TIA.