there are few ways to get skyrim:
#all of above.
#Get steam. it doesnt give a f*ck about your age. (region restrictions possible tho.)
#go in a shop and just buy it.
#pirate it.(dont do it, support bioware and buy it.)
#play it at friends house? if you can spend so much time there and he will allow you to play it
#Show ingame footage of skyrim to your mom. it will help.
#you are 11 you shouldnt play skyrim.