X has been a witch for Y years.

Lots of Craft bios begin this way. Apparently we think that it sounds impressive.

It doesn't.

No matter what your Y is, there's always a Y + 10 that would be more impressive. Not to mention Y + 20, or Y + 50.

Y years? Really? Is that all?

Besides, the statement automatically raises the question: So what were you before that?

And then you've already lost your thrust.

Witches aren't made, we're born.

So, how long have you been a witch?

Who, me?

I've always been this way.