Unemployment and Interview Dilemmas

For the past 6 days I have read as many posts/threads on this forum as I possibly could. Even with all the information available (and it's extensive) I have some issues I could use some help with. I plan on applying for a position as a flight attendant (with any airline that will have me) in the next day or so. I have worked for years in many customer service related fields but I have never had a "serious" interview for a position. I am a bit older, have raised a family and have been unemployed for the past 5 years. I now want to work and more particularly want to have my dream career. Will my unemployment period prevent this and - how do I handle the interview questions? Can I really be myself and express how much I want this job and how nervous I am? Any real world help is appreciated more than you know.