Layoff happened 4 days ago, feeling lost, marketing coordinator here

I was let go as a marketing coordinator this week and I am still in shock. I have read a lot of threads here and could not find my exact situation. I have a box of my things and a short letter about benefits. What did you do in the first week?

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