Many people have the dream of breaking into Show Business one day in their life. While many have the inborn talent to make it big some may have to work hard to polish it. But irrespective of whatever everybody has to plan and take a right approach to get a break in Showbiz. But remember success doesn't come overnight; you have to work hard and even harder to make it big in the Show business. So the first lesson to learn is stay away from agents who promise you to make a big star overnight.
The first and foremost thing to know before entering the Show Business is that you should analyze yourself whether you have it in you to break into Show Business. Somebody can teach you acting but cannot make you an actor unless you have it in you called the desire. Question yourself whether you will be able face the challenges like different work environment, different style of living, new people, new places and many more that might come in your way and the tough competition ahead. A lot depends on how flexible and adaptable you are. If you have a rigid personality then forget about getting a break as this industry demands you to work with people having different kinds of personalities and the possibility of differences creeping in cannot be ruled out.
Once you analyze yourself and you are confident you must be willing to pack your bags and get started. But a piece of advise here, do not quit your job or even if you quit your job to move to a different place keep working part time to keep yourself financially supported. Do not wait until the time you are broke. Many big actors kept working until they made it big. Find a job which is flexible and doesn't come in the way of your auditions or plan things in such a way that you get to attend at least one audition a day.