Need help port forwarding for gmod

I’ve been trying many different methods of hosting a server for just a friend and I. Hamachi didnt work for some reason so I read that I had to port forward my router in order to host a server. I set up a static ip, and I followed the instructions on the website. I tested my ports and it shows they are not open. Can anyone help me out? I have a belkin n300 f9k1002v1 router.

(User was banned for this post ("wrong section. post one thread, not two" - postal))