One important thing to know is that the time you're given is the time that your bus is scheduled to leave. You need to be there completely ready to go about 15 minutes before that. Be sure to give yourself time to go to the bathroom, pick up any bags that you have left with bell services, etc.
And also get from your I'm assuming cabin to the pickup point. Pretty sure they have a dedicated van for this but ask at check in how long this takes .