Acting lessons are a good place to start, but you will never be able to learn everything you need to know about acting from one person. Nevertheless, take everything your coach has to offer and try your best to master it. Take lessons in state and camera acting, because they are different. With theater acting your performing for an entire audience. For camera, your audience is the camera, which may be only a foot or two away. Any exaggeration that may have worked on stage could completely ruin the take on screen.
When you are first starting it is important to never turn down a job, paying or not. Even if you think you are above the content, chances are, you're not. You're trying to get your name out there and showcase your skills and range. From theater in the park to a local TV commercial, jump at the opportunity. You never know who will be in the audience or who will be watching the television.
Search newspapers for casting calls. These may offer you a larger role with more individuals in attendance. Most important, don't be discouraged if you don't land the part. The acting world is full of rejections.
Schools offer acting majors, but they are an expensive way to obtain experience. A degree in acting may look good on a resume, but producers for shows really don't care that you graduate, only about your knowledge and your experience.
An agent will push your name out into the world and learn about prospective projects.
Just because you want to become an actress doesn't mean you must move to Los Angeles or New York City. That's the predictable move and nobody in the acting world likes predictable. There are more talent agents, producers and directors in these two cities, but everyone who wants to act moves to these locations. They are swallowed up by all the thousands and thousands of other individuals competing for the same thing. Make your name known in your state and location, and slowly build yourself a reputation. If you are lucky enough to impress someone big, word spreads fast in the acting business.