Xanax is the devil as far as I've observed. It's the Casey Anthony drug.
As for Vyvanse, I dunno, maybe it's my personal chemistry, but that sh!t made life like a video game and not in a good way. It made holding a conversation about anything other than work tedious and boring. I got a lot of tail when I first started on it, as it made focusing on women and "the moment" so much easier. However, some months in I was amped up and high-strung all the time. It made my temper super short. Needless to say, it made me too intense for the ladies. It kinda has the same social arc as a coke addiction. What makes it worse is that the habit is backed up by a doctor's prescription that has instructions for daily (ab)use. Not a hot look. As far as I'm concerned nobody should be taking that much, that often. I can't believe they give that sh!t to kids.
You were slamming 70mgs though? I topped off at 40s. I don't know how anyone could chill on 70s. That just seems dangerous and irresponsible.