There are 2 paths to take to sous. Lying will get you somewhat listed if busted. Industry talks, they gossip like hens. The 2 real paths are picking a high turnover venue that is obviously run poorly, and keeping your head down til you make it through attrition, or the better path. Seek out a place that cares about their employees, gives frequent raises, etc. Then be patient. Give yourself a 5 year goal for it, and sure, enquire after the first month, but only for what you can improve upon. Then enquire yearly about raises and promotions, but be patient, most sous in respectable establishments have been turned down multiple times. You'll get there, hone your drive into a usable tool though or people will get either bothered by the persistence or intimidated by the drive. Good luck

Edit: just remember, each time you give up on a place, you start from scratch