Hello thanks for asking from HCM The complaints like poor focus, issues of being organised, poor motivation and inability to stay on task could occur due to ADD but other possibilities like Depression or nutrient deficiencies should be ruled out. Such symptoms can occur common medical conditions like hypothyroidism, low vitamin B12 or anaemia also. If these conditions are ruled out then depression is other possibility. ADD should be kept in last possibility in an adult for such symptoms. Visit a psychiatrist for evaluation and to make proper diagnosis. Vyvanse is amphetamine drug and the drug is a stimulant drug. The drug have high abuse potential and this drug helps to correct symptoms only and taking the drug without prescription may result in dependence. I would advise you to take psychiatrist opinion before taking the medicine. Thanks, hope this helps you.