2. What kind of things do you learn/do in college to prepare yourself to be an Interior Designer?

Depends, if for a 4 year degree need learn a lot. Sketch, initial of Architecture, interior design raw material, history of architecture

5. Do you think that even with the economy now, Interior Designers have job security?

No job is secure now. unless medical related , like Doctors, nurses.

6. What are some things I can do in High School to prepare me to study Interior Design in College?

and reading architecture and
interior design magazines

8. In home design, what is the most common thing people want remodeled?

Master Bathroom,
Living room and
dinning room