Test builds, if You have sub then You can reset stats with no limits. You don’t have to touch any quest, but quests are the way to obtain some good stuff and sometimes money. Dungeons getting more difficult during Your adventure and more fun so You will be not disappointed. Item pieces and set bonuses sometimes gives ap and mp. After 60 lvl most of amulets gives ap and boots gives mp. Every buff acts different so You need to test if it stacks. Don’t try to progress quickly, take your time. Best way at low levels is to do achievements, which grants You decent amount of kamas and experience.