There's a point at which taking stimulants just causes harmful side effects. I think you are at that point, perhaps even past it. I believe it would be a good idea to begin tapering your dose of Vyvanse by ~10mg every two weeks. You can do this by dissolving it in water. Just take a ruler and mark off even segments in mm with permanent marker. As part of preparing to withdrawal from Vyvanse I asked a pharmacist for a uniformly cilendrical bottle for it and got it and one which has marks measuring in ml. Don't do it with the Adderall though; it will only work with vyvanse. I would suggest stopping the adderall altogether.

Recovering from dependance on a drug can be hard, but I honestly believe you may be closer to addiction, or perhaps it is better to describe it as an 'unhealthy psychological reliance'. Your reliance on amphetamines has brought you to a point where on them you are far from functional and off them you are non-functional due to symptoms of withdrawl. Gradually tapering off will make withdrawal less difficult but it will take several weeks after completly discontinuing them before the one can reasonably expect to have recovered from the prolonged stress caused by using so many stimulants.