Help with Data Save and Load?

I'd like to create a Date save script of some values like Damage of a punch, abilities a player owns, etc. But I don't know anything about data saving and stuff like this. Might someone of you help me, please? Looking at youtube videos would confuse me more than now.

http://robloxdev.com/articles/Data-store

https://devforum.roblox.com/t/help-with-datastores/72001