WHY AREN'T I PALE:]........?

i don't remember the last time i touched direct sunlight. im half mexican and my other family is from the virgin islands. an african american color. mums naturally very pale like a pasty sickly sallow yellow color. i used to be 16=14 on the skin color graft on wiki but now im like 27 why.. its eating habits i no but i want to no how to stop the Melanogenesis process and tyrosinase.. and im a hermit that has all the windows closed and never goes out.... EVER! ..PS. dont tell me i should be happy with myself and dont give me basic stuff like vitamin talk or whtever becase i no all that if you come on yahoo ansers to help then HELP me.....plz