To quickly reply to some of your questions, meow:
Pole dancing isn't 'easy' per se but there is plenty a beginner can quickly learn and accomplish, if you look through Veena's beginner section you'll notice there is a lot of attainable material for someone with no fitness or dance background. Mastering the art of pole dance is dependant on your level of dedication and current fitness level but generally anywhere from 1-3 years with steady practice is how long it takes to accomplish some of the more advanced moves. This isn't necessary in the stripping business but it CAN make you money sometimes - just don't rely on it because more often than not, personal interaction and sexiness (confidence) will get you much further than athletics.
A general guideline for a good dietary plan is to eat as little 'processed food' (prepackaged, out of a box, fast food) and more veggies and fruit, less meat (but definitely get your protein). Everybody is different and dietary needs is a very complex topic but generally the more nutrients you're getting in their whole, natural form, the better.
Most strippers are just women like anyone else. A generality is dependant on your location, city girls vs rural, and the club environment you're working in has a lot to do with what you'll experience. But it's safe to say that all of the other strippers are there to make money, it's a job - don't go looking to make friends, just to work. Always lock up your valuables, watch your money and if the other dancers happen to be really nice and friendly then it's a plus.
A boob job is absolutely NOT a necessity in the profession. What is a necessity is confidence and the ability to talk to anyone with a smile. I've seen totally flat chested girls at my club do very well and the girls with fake boobs do well but there's nights where no one is making money; it's a crap shoot depending on customers. Every guy likes something different and it's really not a huge issue.
An average good night is highly dependant on your location, shift and club but anything less than a 100 bucks in a shift is absolutely terrible no matter where your are or what time it is.
I wouldn't worry about your height and weight too much, just your ability to happily talk to random people all night, feel good about yourself and get on with the job.
Definitely go to stripperweb too. There's so much information there, your head will spin from trying to take it all in. Good luck!