Where to put my garrysmod add-ons i have a garrysmod folder but then it just goes straight to add-ons and when i put my add-ons in that folder nothing happend please help

Make sure your directory looks like Steam/steamapps/username/garrysmod/garrysmod/addons

If not, you may have installed the game incorrectly.

Remember, the addons folder is for folders with an info.txt file. Other addons have folder names like "models" or "materials". Put these into their respective folders, like moving the contents of "models" into your existing "models" folder.