Is it wrong to constantly lie to my parents? It's not even to cover anything up, it's just a habit.
Then why do you lie to them?
I can't help it. I'm afraid I'll get in trouble.
You should always tell your parents the truth. You'll get in more trouble if they catch you in a lie.
But I never get caught.
You might have been lucky so far with not being caught, but you'll eventually get caught and your parents will probably be very angry. I think it would be better if you stopped lying to your parents.