I can't help with a lot but i can explain some basics.

1) Start leveling up! Save your Crystals and Put them on the Auction house.

2) Don't toss beastmen seals

3) The Auction house is in Bastok Markets (if you're from bastok)

4) Use the NPC for low level armor, Check the shops in Bastok Markets near the exit

5) The guards with the names "I.M" Give an effect called "Signet", Keep it on, Always! It gives you a lot of neat bonuses including Conquest points that you can use to buy some decent armor early on. These guards are generally located right next to any zone in bastok that leads outside

6) ffxiclopedia.org < its a nice place to find some info

7) Any further questions I might be able to answer in game, I'm afk a lot though..