Need help making a listen (non-dedicated) server

Hello, I’m just waiting to get my server up but I have one problem: Nobody I invite joins. They say they want to it but the server info says the server isn’t responding to them. I forwarded my ports but Idk if I did them the right way. Can someone give me a tutorial on how to get my server up and running?

my advice is don’t use a listen server. in the event that you are willing to make your computer vulnerable, people playing on your listen server will most likely have a terrible ping and you would have to leave your computer on forever.