I'm really enthusiastic about the idea of becoming a librarian, but I'm also nervous. What can I do to feel more well-equipped for the job?

If you are thinking about your dream job, it's important to remain calm and motivated. Whenever you have a thought that's negative or discouraging (like believing you're not cut out for a job), challenge it. Take a moment to take some deep breaths to get into a less anxious state of mind. Make a list of all the reasons you're qualified for the position you're interested in and review it. Focus on all your assets in order to get closer to your professional goal and to prepare yourself for your interviews. What's most important is that you speak to yourself in a way that's uplifting and empowering: if you do this, then you're much more likely to stand out as a candidate.