I have been asked this question a lot over the last few years, mainly by young enthusiastic school and club team keepers. Well the biggest key to progression your career as a goal keeper, is to train and learn all aspects of the game. It sounds like the same old advice, however practice does make for a better all round goalkeeper. So as you become better and play for different teams and clubs, you take these skills and the discipline work ethic with you.
So stay focused, learn all aspects of the game and above all keep training and improving your skills.
all the best