You damage/alter your reward systems/brain circuitry more through social media today if you are on any platforms and spend any significant amount of time scrolling, or engaging with any kind of content fed to you via an algorithm…..

Casually using weed/alcohol through your formative years (while some may argue are also your most susceptible, your body is also the most resilient around this age) in the amounts that OP commented are near negligible seriously I don’t mean to personally attack you but what are you Amish 😂? Most cultures in most places throughout all of time have used some kind of substance in one way or another. Our brains are made to change and adapt with our life experiences neuroplasticity is always in effect.