ADHD and fear of working

Hi! First time posting in here but I need some help. I am wondering if someone can provide some insight on how I’m feeling and what I’m struggling with.

I have only been diagnosed for less than 1 year, but I have always struggled with the idea of working. I’m absolutely terrified that I won’t be good enough at the job or that I will never be able to make a good enough impression to even be offered a job in the first place. I had a job last year but I got it simple by chance (right place right time) and have since lost it due to unforeseen circumstances. But it’s been almost a year, I’m struggling financially and I want to work but I’m so scared of constant rejection from employers that it makes me give up immediately. Or I will manage to submit an application for a job that would be perfect for me, hyper fixate on the idea of working that job and get extremely upset when I don’t hear back or get told I was not the right person for the job and then I don’t want to try anymore because I tell myself that I won’t be a good fit for anything then.

Deep down I know that’s not true but I can’t get past those feelings once they start flooding my mind. It can take days to overcome the overwhelming depressive thoughts and feel ready to keep trying.

I think what I’m just trying to understand if these feelings are related to rejection sensitivity or is it perhaps something else that needs to be addressed.

I spoke to my social worker about these feelings a little bit and she had no solid advice to offer unfortunately. Has anyone experienced something like this? How do I handle these feelings without getting burnt out?