I need an acting carrer!

Actually kids, the BEST thing you can do for yourself is make sure you don't miss out on your childhood! By all means, continue to cultivate your love for acting by joining a class, learning new skills, etc. But a good actor must have well-rounded experiences of real life to draw from. Don't deprive yourself of a normal childhood by becoming obsessed with the theatre / camera, or by spending all your time preparing for auditions / building folios. Balance your life - play sports, work hard at school, have fun with your friends, spend time with your family, read wonderful books, have hobbies other than acting. If at 12-14 years of age you spend too much time and energy on folios / auditions / classes, and exclude other areas of your life, you will be depriving yourself of the most important and enriching resource for any actor, young or old - life experience.