Layoff happened 4 days ago, feeling lost - 9 weeks in

I lost my job as a software tester and I am not sure what to do first. I do not usually post, so bear with me. 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 last year, and it got easier once I kept a simple log of every call and form.