Layoff happened 18 days ago, feeling lost

I was let go as a security officer this week and I am still in shock. I worked as a security officer before this. I have a few weeks of savings and a rent payment due. Which steps were urgent?

Ask for your final pay, unused leave and any documents in writing before you leave, if you still can.

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