Accidentally cut myself

I cut my foot open on a rocky beach in the Hampton Bays. I'm sure it was a rock, and my friend cleaned it when we got back to the beach house. But I'm catastrophizing. I don't want something like HIV. Just let it go. Don't go to the emergency room tonight. A hypodermic needle?

I need to remind myself the object that cut me in the ocean was a rock. I know it was. I'm just catastrophizing. It's probably the rocky beach. Let it go.