I am by no means a super model but I can say that I have had enough experience (four years worth) to be able to give a few nuggets of advice that I have come to treasure and live by. Some are tips I have learned from the masters (America's Next Top model counts, right?) but most is what I have learned before/on/during/after the job.
This first piece of advice is something I have come to realize I should not have slipped up on this week and that is to be self-reliant, do not depend on others to help you throughout your career. In my case I am talking about relying on others to help you out with getting equipment to and from a job or to get you to and from a job. Much as I appreciate the help I have gotten, I have realized I slipped up massively when I could have returned equipment from a previous job to my agency last week only to have it delayed and a job coming up tomorrow with details I have yet to learn about as I would have gotten them last week upon returning the equipment.
And with a massive phone bill to be careful of I can hardly afford to make even a thirty-second call and so far my email has yet to be replied to. So the moral of the story? Be in charge of yourself and do not depend on others no matter how good of a person they are because they have their own lives to prioritize and this only leads to your downfall as you are the one who has to sacrifice.
Apply it to all aspects of yourself and your career, may it be make up (seriously, never use any other model's make up, always make sure you have your own for jobs - I will go into this more with another tip) or finding out details for yourself instead of relying on what she said, he said.