I’ve been on a medical LOA since last year and tomorrow I go back to work and I keep thinking about how almost all my coworkers I knew are gone and processes have changed. Also that if I do something wrong I might injure myself again and be right back where I was a year ago (I have been cleared for full job duties by my doctor).
My only bit of rational input to counter act your brain, is that: you got the job, not someone else. You’re the winner, and you can do it. New jobs are fucked… so stressful… so much doubt… so much anxiety… but you got it for a reason. You had something that no one else had.
Listen to a stranger pump you up as much as you listen to your brain. Whatever your job is, it will be second nature in no time.