So I'm trying to set up a NON dedicated gmod server

Ports are forwarded and all that jazz
not going to bother trying to set up a dedicated

I host the server
Doesn’t work
used sv_lan 0
still nothing
youtube isn’t helpful and neither is google

so I have resorted to facepunch
any help?

Windows firewall set to allow all the hl2.exe’s in the allow/disallow menu?

yes