Well, to start with, find a friend, or guild! Guildies/Friends can be a huge help for new players, as they can HELP! :D
Firstly, find a friend to run you through the dungeons that drop Vamp/Forest gear. After you get some of that good stuff, try going back in seeing if you can fight them this time! If not, just ask a friend to invite you to a group so they can help you run through it!
Hope this helped! :D
-Bladeroth