forge mods WILL NOT show up

[Diamonds4life]

so i've downloaded a mod for forge put it in a folder and used game directory to point to the modpack and it still wont work. I honestly don't know why, it just refuses to load it only shows the five mods already there. can i please have help i've watched videos and read replies to stuff like this already but none of it worked. Please help

Edited April 11, 2020 by Diamonds4life
i forgot to put it lol

[Diamonds4life]

btw the forge version is 1.12.2

[Ugdhar]

5 hours ago, Diamonds4life said:

btw the forge version is 1.12.2

1.12 is no longer supported on these forums due to age.

Please update to a modern version to receive support.

 

More information on supported versions can be found in the LTS link at the top of every page.