Don't ever feel stupid for asking a question! Questions are to be asked, else we wouldn't need questions

Now, the mod folder location should be the same location as FS13 and FS15. By default it's
C:\Users\<yournamehere>\Documents\My Games\FarmingSimulator2017\mods. The easy way is to just open explorer and click '
My Documents' in the left pane. Then click
'My Games' > 'FarmingSimulator2017' > 'mods'.
* sidenote: It is '
C:\' by default, but you can change this to whatever disk your Windows is running on.
If you won't have the mods folder you can create a new folder and call it '
mods'. Make sure your mod is in a .zip format, else the game won't recognize it.