I have a friend from high school who is blind, from birth.
The main thing to remember is that being blind doesn't necessarily mean your other senses are stronger. Most blind people do learn to rely more on the sense of hearing, smell or touch, but blindness doesn't automatically make your other hearing or smell more acute.
Kids in high school don't generally have guide dogs, though it is possible with some guide dog schools. Usually you have to be 18 or older, though some say 16. Also, A Seeing Eye dog is not a synonym for guide dog. A Seeing Eye dog is a guide dog trained and provided by the Seeing Eye, and only dogs from there can technically be called that.