If you're new to management, consider taking a workshop this summer. (We offer quite a few for business managers at our Summer Institute. Just look at the listings above.) Professional development courses are highly recommended for all stages of one's career, but they are especially useful for those new to their field. However, if your school isn't budgeting for professional development, here are a few good guidelines for cultivating your own leadership style.
Embrace the moment. One way to prevent second-guessing yourself is to stay in the moment. Focus on the conversation you're having or the activity you're a part of. It's difficult to doubt yourself when your full concentration is centered on what you're currently doing.
Don't imitate—be yourself. No two managers are the same. If you try to imitate or follow some leadership theory to a tee, you're actually holding yourself back and robbing yourself of your competency when making decisions and dealing with people. Integrate your knowledge about yourself and your expertise to your role. That's key to being a powerful manager.
Make peace with yourself. Being yourself in your role brings wisdom and energy to your job. Know who you are outside and inside the office. Find a balance that is both professional and comfortable. How you behave when you're not self-conscious can help put your true self and your role in harmony.