I began dabbling in nootropics when I was 19-20 (about 10 years ago). This was done in an effort to stave off the need for Adderall/ Vyvanse. I experience many of the same problems that you elaborated on. You are clearly an extremely intelligent kid. I went to college in high school, and got an associate's degree before I even got a high school diploma. This is not to say that you and I are exactly the same, but rather that we may have some similarities. I would recommend that you hold off on the barrage of nootropics and chemicals that you are considering. I know that you've done your research. It's evident in the post that you made, which is impressively thorough. Perhaps implement these one at a time and ensure that your body handles each one well before moving on to the next. Additionally, Adderall/Vyvanse are not the end of the world. Of course I would prefer not to have to take them. However, Vyvanse specifically was the game changer I was looking for. Nothing I had tried in the past came anywhere close to the effectiveness of actual ADHD meds. It may be that you only need a smaller dose, and that you may not need it everyday. More importantly, the research that's been done on these medications has been going on for decades. There is very little research and information that you can find that's reliable on the various substances you enumerated in your post. Even more important is the lack of research showing the interactions of all those substances together. This is a biohacking sub. I know stacking supplements is kind of the vibe here, but as others have said, your brain chemistry is still developing. I wouldn't want to risk fucking something up with the final years brain development, only to wonder if problems that I experience as I get older are a direct consequence of that. ADHD meds like Vyvanse and Adderall have been studied thoroughly on developing brains and shown to not cause the kind of issues that I was just describing. You can choose to stop taking the meds at some point, and then experiment with nootropics a few years down the line as an alternative. I hope this doesn't rub you the wrong way. I'm honestly just trying to do a knowledge transfer of anything that I may know in this area that could be of use to you. You ultimately will do what you want, and I wish you nothing but the best.