Exactly as The Commuter said, it takes time an experience. I asked a lot of questions and I jumped on any thing that required new education. Go to conferences, look for classes on the novice nurse that helps expand your skill set, and must of all find a "MENTOR", that is seasoned and you trust. This will help you with new knowledge and when you have questions you won't feel like you are asking stupid questions. Keep your head up and enjoy helping others, before you know it you will be preventing others.