WordPress using webmatrix

Hi guys I need some help understanding something. I recently just created a wordpress but I am hosting it on my PC. Now I thought everyone online would be able to see me by my IP address? All that does though is take me to my router. I am trying to understand what my address to the world is? https://localhost:31798 can’t be this right? It’s just the URL to my PC where I work off it.

So how would I find my real address?

Edit:: Learning I need to deploy to an actual host? So is there any way I can host wordpress on my PC? I don’t want to have to pay to host my wordpress but I want to do it from my own computer. I leave it running all the time so it wouldn’t be a problem. So how could I go about doing this?