I think where a lot of people struggle in terms of EX/savage level content is the idea of difficulty. The concept of wiping over and over while learning is completely at odds with the entire rest of the game. You need to have a different mindset going in, and be willing to lose a LOT before you finally get it. As long as you can handle that, you'll be fine. No one expects you to know everything, or even anything on your first try (just make sure you join a learning party and not a farm party.)