Just got laid off, what should I do first?, line cook here

I was let go as a line cook this week and I am still in shock. It has been weighing on me all week. I have a box of my things and a short letter about benefits. Is there a checklist I should follow?

Thanks for writing this out. I went through something close to it 5 months ago, and it got easier once I kept a simple log of every call and form.

File for unemployment right away. Do not wait for severance decisions. The date you file can matter.