Vyvanse basically ruined my life in high school in part because my psychiatrist was afraid to prescribe those pesky abuse-prone IR amphetamines, but I felt I had to keep taking them because it was my only way to succeed academically. Having also been a heavy caffeine user over the years, I think Vyvanse is in an entirely different ballpark.
I'm now managing my ADHD effectively by taking low doses of Adderall on an as-needed basis (average of probably 90 days per year, <10mg per day). Minimal insomnia, minimal depression, no paranoia.
SSC's article is the best concise discussion of ADHD and medication I've ever come across: https://slatestarcodex.com/2017/12/28/adderall-risks-much-mo...