Replying to Fundamentals Of Skiing

Ok so this thread could be very useful to a lot of people or it could be just a big fail. So when i started skiing i jumped straight into park and never really learned the fundamentals of skiing and the proper way to ski. I can ski fine when i'm in the park or on a groomed run but when it comes to anything choppy or harder to ski i get out of control. So to be a more versatile skier i want to learn the proper way to ski. So post your tips on the proper way to ski such as balance, carving, pow etc.