Laid off this week, where do I start? after 13 years as a software tester

I lost my job as a software tester and I am not sure what to do first. It has been weighing on me all week. I have not told my family yet. Is there a checklist I should follow?

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

Give yourself the first couple of days to be upset. I did, and then I felt able to plan.