It sounds like a little Rejection Sensitive Dysphoria could be at play — reading into what people say and seeing criticism in it.
You’re also clearly struggling with executive functioning though, which is a hallmark of ADHD. This next article is tips for kids, but they’re appropriate for adults too (the at home portion). Make yourself checklists. See if you can create an acronym to remember steps for different processes.
“I Remembered Not to Forget!” How to Improve Working Memory in Children
And, give yourself some grace. No one is fluent in a job after only two days.
Penny
ADDitude Community Moderator, Parenting ADHD Coach, Podcaster & Author, Mom to teen w/ ADHD, LDs, and autism