About Portfowarding, looking for some help

Hello there! Thanks for clicking this!, I find it kinda hard to understant portfowarding, I’ve followed multiple guides for it, and I cannot find my mistake, I use a Thomson DCW775 Router, I would really appreciate some help, If you are willing to, feel free to add me on steam https://steamcommunity.com/id/sheepsauce Thanks for reading!

Haaaaa my friend you wish to port forward yes? Thank you for giving me the router this will help alota lot

www.lehuo.ca › DCW775_ V3.3.pdf
A pdf of the router.