Layoff happened 18 days ago, feeling lost (update)

They called a meeting on Thursday and 18 of us were let go. I had been there 18 years. I have a few weeks of savings and a rent payment due. Is there a checklist I should follow?

Thanks for writing this out. I went through something close to it 8 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.