I think that the sooner you'll try it the happier you'll be. I started in my 20's and I felt like I wasted all my teenage years with whitebois, not knowing what a true pleasure is!
Also, once you try you'll be able to spread the good word about your amazing experience to other White girls.
That's how it was with me. I was personally convinced by my female friend who dates exclusively Black men to try dating them. And she even brought me to a club where there are tons of handsome Black men. Thank to her I've been hooked ever since. I never came back for a white dick.