Keep it buttoned. Learn how to work as part of the team rather than insist on being a leader. Start by attending meetings as an observer: you'll glean important information while you practise participating without speaking.
Show vulnerability. You can't win 'em all, no matter how good you think you are. It's no bad thing for others to know that you too are fallible. Just don't make a habit of making mistakes.
Accept criticism. You don't have to follow feedback to the letter, but show that you're prepared to take the comments of others on board.
Try impartiality. When someone comes to you for advice, put your own agenda to one side and base your recommendations on what you really think is in their best interests.
Let go. You can't do everything yourself. Delegate some responsibilities and tasks and surround yourself with people better than you in these areas.
Share the accolades. Making sure your efforRets are noted and appreciated is no bad thing - credit where credit's due - but you must share any praise with your colleagues if you want to become known as a team player. Their appreciation will come back to you - maybe just when you need it.
Broaden your interests. There's more to life than work. Your identity needn't, and shouldn't, be entirely based on how well you're doing professionally. Draw your self-confidence from other areas of your life too.