Layoff happened 17 days ago, feeling lost - any advice?

I lost my job as a dental hygienist 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. What did you do in the first week?

Thanks for writing this out. I went through something close to it last year, and it settled down once I kept a simple log of every call and form.