I wanted to know the ruling on vaping without tobacco, my parents don’t like it so if It considered haram and should I control my nafs?

If it greatly causes you harm (negatively impacts your health) then it’s haram. But if you believe it’s minor harm then it would be halal. In any case, I recommend you control your Nafs. First, you’ll be satisfying your parents, which is a great deed in Allah’s eyes. Second, you will strengthen your willpower, and third you will avoid some health risks.