I’ve never taken concerta but I have taken a different SNRI and I’d start to feel like utter shit by the afternoon if I forgot to take it in the morning. I would be way more worried about skipping an SNRI than a stimulant, personally.
I don’t do drug holidays. I know a lot of people do, but I just can’t function. It makes sense that when you don’t take the medicine that helps you function, it’s really hard to function.
Set an alarm for an hour and a half before you wake up. Pop the Vyvanse then go back to sleep. Makes it so much easier to get out of bed once the meds start hitting.