Fashow- How are you doing today? Hajo and the others are correct. You have to pace yourself. Hookah is about relaxing not racing to see who can take the deepest puffs and get the most smoke ect. I mean you can, and it's fun, but don't let that over power your session. You didn't say this, I just see alot of new people doing this , that's all
All the other tips are perfect. Good luck man.