My D interviewed for four of the schools she was applying to. She was initially quite nervous, but the first two were so relaxed and informative that she began to look forward to them. This in itself was a good thing - now she has some interview experience under her belt, and will be less stressed for future interviews. She looked at the common data set for each school she was applying, to see if they considered an interview important. Some considered it very important, and some did not consider it at all. She requested interviews through admissions at the schools who rated it as important.
She did have a school that was a clear favorite and applied ED there, but it has a less than a 10% admittance rate, so she turned most of her attention to schools with higher acceptance rates, and found a range of schools she felt really happy to be applying to. We never used the term dream school, and she realized that there is no one perfect school and that all schools will have both strengths and challenges. She tried to find ones that would feel like a fit, both academically and student body wise, as well as considering location and campus. She was both stunned and surprised when she got into the ED school, and is now a happy freshman there.