The area I think I need the most help in is identifying what I should know as a DBA, but do not know. Just like the old adage "You don't know what you don't know". Over the years, I have been on a few job interviews, that I know I wasn't really qualified for, to get questions which I should know the answers to. One time I was asked a question on a job interview, I should have known the answer to. I went back home to research the answer to that question after the interview. To my advantage, the exact issue came up within a week after my interview. Having been exposed to concept and researching it prior to it coming up really helped me shine at work.
The other area I would like help in my career with is the question of should I have some knowledge of everything, or all knowledge of something specific. Would it be better to be a DBA that knows everything he can about query tuning. Or a DBA that knows how to do SSIS, SSRS, building data warehouse, indexing strategies, etc... I always struggle with is I only have so much room in my head, and what I should fill it with.