I'm 16 - should I be doing anything different?

Being 16 you actually have benefits that others don't, the younger you are the more melanin your skin will produce and the darker you'll be. The best thing you can do for yourself is to keep your skin super hydrated so that you don't have any premature aging to your skin. Just use good lotions, good beds and good moisturizers and you'll have a perfect tanning experience!!

http://www.lotions-for-less.com/home.php?cat=253

Happy Tanning

Youre only 16,I think if you want to get tan don't use any artificial product it's better for you to do the natural tanning (exposing your skin to sunlight),at your very young age your body needs a lot of Vitamin D,but while doing it always remember that too much UV rays is a cause of skin cancer.

Melanotan Canada || Melanotan Europe

The point that you stated Silence is right but, still it will be better that dont get into much exposure as, it may be harmful. I will suggest you that it will be very soon for you. Better, stick with the skin you have.