Does one have to be born into Wiccan powers to be able to attain them?

There is no such thing as "Wiccan powers." I don't know what it is you're looking at, but it's not Wicca. Wicca is a religion. Wiccans cannot do anything that non-Wiccans cannot. We are not superheroes. And this is not a fantasy game. We are not born special. Your friend is full of it and putting very strange ideas into your head.