I've applied for a scholarship that will pay for my entire graduate studies. This scholarship means alot to me and it will relieve so much stress. In about 2-3 weeks I'll have to go to an interview to allow them to screen me and decide if I'll be a good candidate to receive the scholarship or not. The question that I always have a very difficult time answering is:

TELL US A LITTLE ABOUT YOURSELF

I've never been comfortable talking about myself, what I think about myself and also I don't know how to brag about myself. How do I talk about myself and not tell them my entire life story.

Some information about the school:
I've been accepted into the Rehabilitation counseling graduate studies
They focus on working with people with all sorts of disabilities to help encourage people in becoming independent and help them look pass their disabilities and life's obstacles.

Please help me focus in on what points of my life should I talk about
How do I go on this interview and not sound so generic?

I bet this may be the same for many other people but I do so much better with specific questions such as: Why did I decide to going into this field?
Oh thats a simple question to answer.