Hyperbole is very common, but it is still lying. and it is a trait which can easily become a habit. It can be like the thin end of a wedge. Hyperbole is often seen as a more acceptable form of lying. It isn’t. It’s actually dangerous, because if it isn’t eliminated, it can undermine your conscience and, gradually, lead you into telling much more explicit lies.
I knew a church leader some years ago. He was particularly prone to Hyperbole . He actually became well known for it. People used to excuse it and speak of it as "just his way” and that he was “evangelastic” But it’s very wrong. It can easily escalate to the point where you aren’t just being a little rough and ready with figures, but increasingly wide of the mark. Therefore, make a decision never to exaggerate. It is wrong in itself, but it is also wrong because of what it leads to.