A while back, one of our kids got a job putting stickers on cars...wraps I think the kids call it. One of the first things he did was to "peen" our window. Good kids. If yourn have never "peened" you, ask yourself, "what am I doin wrong?"
On the last day of August, I had an amazing dog. On the first day of September, I buried her. She was the fucking best.
Howdy, y'all.
So the first thing you'll want is a real IP address. Ask your ISP.
Pro Tip: ask about business internet to your home.
At this point, the work starts. Map out the internal and external address space used by your ISP's router. Make sure you can disable DHCP on the router. Don't be afraid to ask if you don't understand DNS or DHCP or Port Forwarding or Firewall. You'll need to kinda know what those things are.