I've been going through a similar, though I'm guessing milder, thing this year. I'm also not senior but here's a few things I've found very helpful: 1) Be expl

I've been going through a similar, though I'm guessing milder, thing this year. I'm also not senior but here's a few things I've found very helpful: 1) Be explicit about what you can and can't do and tell your manager and team if you're comfortable doing so. I found this helpful for a few reasons. First I felt less bad for ignoring or failing at certain things because I knew I was still delivering in other areas. Second it made it easier for my manager to work around as they knew what I could handle and what they needed to pull in help for. Lastly, and most importantly, when I focused on the tasks I knew I could do I felt far more in control and my anxiety levels would go down significantly. 2) Take time off if you can. I'm fortunate in that I get a lot of sick leave and my manager encouraged me to take it. Quitting comes with a lot of stress but just having a week or two off can really help. 3) Read Feeling Good by David Burns and work through the exercises. It's a book explaining Cognitive Behavioural Therapy (CBT) and I've personally found it really helpful so far.