My firewall is turned off and nat type is open

[HolyBanana]

derp. router's firewall is off.

when the firewall is off, all ports are open, so i don't think i need to port forward. i'll just test it out ^_^

The firewall has nothing to do with ports.
I have my firewall on, and I need to set up the port forward.
If you have firewall off, you can't expect your router to know to forward that port.