[Help!] How to make a mod for Garry's mod?

Yo,
I have problem about making a mod for garry's mod.
If you know how to make a mod sent a reply to me!

Well first off your gonna need a basic understanding of Lua code. But for the tools, you need to make and publish an addon check out the gmod wiki: https://wiki.facepunch.com/gmod/Workshop_Addon_Creation This link pretty much gives you the rundown but I'm not sure how dated this is. lemme know if it works.

1. Have a clear idea of what you want to make. So you dont get lost or confused while doing it.
2. Get addons that have something you can use, you dont want to start from 0 to 1000 lines of code, maybe the mod you want to make could be done editing some stuff from another.
3. Adapt the other addon's code to your like, start changing simple stuff, then deleting, then merging other codes until you get what you want.
Note: Put a print() or darkrp.notify everywhere, so you know it works, then you can remove it. You can also do this on addons you don't understand

you can serach this on youtube , more tutory vedio at there