[Keaton421]

I'm tired, so I'll answer the first and last.

1) Some adjectives are considered "na" adjectives. Depending on how you use the adjective (like, "the dog is small" or "that's a small dog"), you will need to use "na" at the end

10) Jibun does mean "myself". The way Japanese is set up with the "wa" particle (grammatically, it's like "as for ___"), "jibun wa" is like saying "As for myself..."