I need help with Garry's Mod. Can anyone please explain how to use it and set up my own stuff on it.

I welcome you all to my newly created group, Masilidon's Friendly ♥♥♥♥♥ Group. This group isn't really about anything. It's just a place you can post cool ♥♥♥♥ about your games in. I'll start multiple discussions for different things like glitches, achievements, awesome kills, and so on. Have fun.