I could have written this exact post 8 months ago. I mean that's literally word for word how I felt when I started my current job - even down to the age differe

I could have written this exact post 8 months ago. I mean that's literally word for word how I felt when I started my current job - even down to the age differences, muddled thoughts, problems with tools and brain rewiring. It does get easier. After a few months and you start to build more important things you'll start to feel more valued, more important and more respected (and by this I mean you likely already are valued, important and respected - I'm talking purely about your own self-impression not what others actually thing about you). Thus the anxiety does start to fade. My advice is use that anxiety as a motivator. Once it does fade away you'll be in a better, happier, mental place but in the meantime you might as well use that nervous energy to solve problems with your tooling, etc. The problem I had was some days I'd get so panicked that I wasn't pulling my weight that ironically I was too stressed to work productively. Once I started using that nervous energy to focus on my actual problems rather than perceived problems I found myself far more useful, better organised, and weirdly I became less a paranoid employee as a result. Also make sure you attend work socials. Seeing people in a normal, non-work, setting is great for making you feel more at ease and integrating better in the team. I hope your feeling passes because i've been where you are and know first hand just how horrible it is!