What you don't know can't hurt you. Wrong.
When it comes to your career seek constructive criticism! You'll never fully develop your skills unless you address your weaknesses. If your manager or a team member offers you "negative" feedback on your performance, be mature about it. Listen to what he/she has to say and reflect on it.
If your manager does nothing but praise you, ask what you can do to improve. Some people are nervous to offer criticism for fear that it will upset the receiver. Let him/her know that you welcome his/her opinion and that it wont' hurt your feelings. Thank the person for sharing his/her insights, and don't be afraid to ask for clarification or examples of how you can improve.
Get familiar with other departments.
If you want to climb the corporate ladder, then you need to get out of your bubble. Get familiar with the rest of the departments in your company; learn their languages and methods for approaching problems.
This way, when you develop a grand initiative, you can put your ideas into terms understandable to the larger audience. Recognizing how
your plan will interact with other departments and impact the company overall will improve your chances at winning over leadership. Extend learning beyond your role to hone your communication skills and success will follow.