I did a previous solo trip to Panama last year and paid for not having a roommate. I think there are pluses and minuses but overall, for me it was good as I am on the shier side and felt that having a roommate might add more stress to a much needed vacation. Think about this vacation as a "once in a lifetime" opportunity. How often will you get the chance to get to Norway and with such a great organization?
Bless your heart for thinking I am that young! I graduated well before then - I did most of my education in Southeastern Wisconsin except for a year in Chicago, so maybe our paths have crossed. BTW the photo is 3 years old and the "18" in Beth 18 is for my birthday, not my age :)