I wear size 13, so I got size 12 boots ! The salesman told me to get a wide board because of my height and weight (I'm tall and fat
I hope I did not make any mistakes there !
Well, a wide is ok, but NOT because of height or weight (weight determines board length, height determines nothing). Width is based on foot size and, to a lesser extent, binding angles. I made the same mistake when I bought my first board, only for me it really WAS a mistake, since I only wear a 10-10.5. You're going to enjoy riding much, MUCH more with your own kit and your lessons! Welcome aboard!!
"my only interest in statistics is in not becoming one"