I've been interested in scripting for a while but I'm not sure how to start scripting. Could someone please show me what I need to do to get started?

http://planetelderscrolls.gamespy.com/View.php?id=6083&view=Mods.Detail is the most extensive guide that's been made.

^ Yeah, consult that for literally everything. I still do, and I've been scripting for years.

But as for what to actually do to get started - that guide offers a tutorial, alternatively I'd recommend just thinking of an idea and trying to work towards it. A good way to start is by copying bits and pieces from Bethesda's own scripts.