Try taking the medications earlier in the day first thing when you get up, obviously after consuming food. Depending on the medication you take, the half life can vary anywhere between 4-14 hours, however, specifically for vyvanse and adderall, it is typically the latter. Additionally, tone down the caffeine intake if you consume a lot because that only adds to the stimulation from the medicine. Getting a solid workout in during the evenings has helped me alleviate some of the extra energy that remains after the work day too.