So - for new players - I would highly recommend learning to craft gear and starting to learn about your spell trees and statistics in /gear - This controls your damage and health and keeping your gear up to date (at least your hands) is vital to progression. I would recommend not investing too much on gear until you graduate - but make sure you have up to level stuff on!
Also there are food and potions that can buff you (or damage an opponent) and can be crafted from mob drops at brewing and crafting stations in towns
or bought from the marketplace! Good Luck!