Layoff happened 17 days ago, feeling lost (Buffalo)

I lost my job as an IT help-desk technician and I am not sure what to do first. This is my first time dealing with any of this. I have a box of my things and a short letter about benefits. Which steps were urgent?

I made a short list: benefits, bills, documents, and then my résumé. One thing each day kept me steady.

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