First off, pick a good clan to join. You have to make buffers too.
Then figure out what is a good place for your class to farm money and xp.
If you are a mage its PI. As a melee when I had no help on my first character I did MOS. If you are a warlord then farm GC or that one room in MOS that is weak to pole.
You have to have patience. You can not max out on your character on this server when you are new in 1 week.