Self - Vampire and Witch based (since you're being brought up by those powers of these two, of your mom and dad)

(I decided to name the main character as Ae Mi)

You have indirect bloodline of all species and powers of all breeds, just that you haven't fully developed and trained them. 

By your 1000th birthday, all will be fully developed since you'll be turning into a full transformed breed, just that practices will make your powers stronger. 

The only power you don't have is light, which is your soulmate must have light powers, and solely based on the Light side instead of the Dark, or else it wouldn't help you, since you're towards the Dark side. 

-------------------------------------------

Basically you have wings, but you hidden them.

Since you're considered the Dark side, your dresses are mainly black, but you have white ones and other colours too.

(It only applies when you transform, not in your human form.)

When you reach your full transformation, your wings, hair, eyes, fangs, nails, apparently colour and outer appearance will change a little.

You'll turn prettier and stronger. (Just ignore the face, its for illustration purposes only.)