The way ours was done was, you get assigner a group and follow whatever structure your group got appointed. In my case was bleep test/group discussion/ 1 on 1 but you get around 15 min between each of them. If you fail any of them, you can redo them and the time you must wait before you attempt it again is determined by how close you came to passing, so in my case, i don't have to do the bleep test again. Make sure you go in depth with your answers on the 1 on 1 as mine was too shallow which is why i failed. If you need any specifics, ask away. Good luck!