"Do not use your owner key to log into Steemit.com to post. Use your private posting key instead. Keep your owner key offline as much as possible, and only use it when you must."

I am new to this platform, and I only have ONE super long password (which I am going to assume is my "owner key"). Would you mind explaining that part of your comment that I quoted in a little more detail?

Where do I make a seperate "private posting" password (and are you talking about private personal text messages/Instant Text Messaging type comments, or making comments on videos like I am doing at this very moment)?

Sorry for the noobie questions! There seems to be a lot to this platform. If you don't mind clarifying that bit, I'd be super appreciative. Thanks in advance, if so! :D