Could anyone give me a quick laymans how-to on these things? Just hit 60 on my culinarian (plan to do the others when i start making some gil back), got specialist crystal things, and now no clue what's going on.

Scrips - What are they, how do i get them?
Collectibles - Same.. and how do i improve somethings collect-ability?
Other advice, things to do that will improve my gil income and quality of crafting life, my head is still in lvl 50 crafting TBH.