I do not have sources that directly detail the negative effects of smoking Marijuana on people under 25, but the prefrontal cortex of the brain does not fully develop until then. It would be possible to furiously Google supporting studies, but I have limited interest in doing so.

I apologize for alarming you, but that said (and with absolutely zero judgment or gratuitous negativity) I highly encourage you to reduce your consumption of Marijuana for your own sake.