I don't know what to script or how to do what I want with it. What do I do?

Probably not a question that is wanted here,

But how do you manage scripting?

I seen scripting examples, as if "function=", etc.

For example, how do you know what to do when your ranking your place by group? (already answered on another link. Just a a example.)

You just need to learn to script properly, and be patient. You're not gonna wake up one day and be the greatest scripter in the world, you've got to commit, be patient and willing to keep trying even if you're not getting it and one day it will just click and you will understand. I would recommend using this playlist by roblox scripter and wiki writer pighead10: http://www.youtube.com/playlist?list=PL8A3AFE78FAF8CF49. That's where I originally started learning a couple of years ago, and while going through it use the roblox wiki http://wiki.roblox.com/index.php?title=Roblox to keep checking things you learn, to make sure you fully understand everything. Also, whenever you don't get something properly or the roblox wiki just isn't enough, just ask about it here and i'm sure you will be flooded with useful answers. Also, a tip, even if it feels like some of the videos in the playlist aren't necessary, that you already know that stuff, watch it anyway as you probably don't understand it as well as you thought you did.

Good luck with your learning.