I’m so unhappy in my job

I’m autistic and 43 YOand after a burnout 6 months ago, I’m back in the role that I have been in for 18 years. Since the burnout I have been unable to mask, but I’m also finding that I am struggling to do the actual job which is working with data at a senior level. Everything that made sense before doesn’t make sense. Numbers are jumbled, words are hard to comprehend. It feels like I can no longer do the job or even want to. All adaptions are in place, I’m just not happy there anymore. I have no idea where to even start looking for another job. Who’s going to want me now. Sorry my words aren’t very articulate tonight.