Return to WoW -- HELP!

Just returned to WoW with a WoD pre-order. I haven't played since WotLK, with a freshly minted level 90 where do I start? Decided to go with Prot Warrior, spent pretty much all of my 150 gold on the major glyphs.

.....

-Where can I start acquiring some solid gold?
-What add-ons are recommended?
-What professions are strong atm?

Some examples of what I'm wondering...

Essentially: WHERE DO I START? So lost.