What's The Difference Between A Page & A Post?
Another good question! You are doing well.
A page is static and doesn't move. It is usually for a major theme or important topic on your site. Something like "about me" or "privacy".
A post on the other hand is part of a blog roll. It can be put into a category, added to "recent posts" and is usually on a smaller topic.
You might find that a Page usually has a number of Posts linking to it.
I usually have a backbone of Pages on a site, such as about, privacy, contact, subscribe etc, and then all my daily article writing takes place as posts, things like "How to xyz" and "Why Xyz is a good idea" and so on.
Should My Homepage Be A Blogroll or A Static Page?
OK this one comes down to personal preference, but I think most people prefer a blogroll. It is sometimes necessary to use a homepage as a kind of "about" or "mission" page, but I usually use the "about" page for that.
Having a blogroll as the homepage has some perks too.
1.) It shows fresh content to the user who arrives there.
2.) It shows fresh content to Mr Google
3.) You don't have to come up with an incredibly well written homepage.