Post Installation - What is my IP?

Hi community,

I’ve just installed yunohost on a little Acer netbook.

I never saw a screen that said my IP, so I followed the command line tutorial, eventually entering a domain name that is my first name, last name, ( It was my understanding that this would somehow be handled automatically. (I have not purchased this domain name or anything.)

Now what? If I enter in my browser nothing happens. I also do not know how to see my IP address.

Did i mess something up by not following the browser instructions?
How can I gain access to my server through my browser and the domain?

Thank you!