Be very cautious about taking "downers" to counter the effects of the adderall. You can get into a seriously bad cycle of pills to wake up and pills to calm down that can really get out of hand. If the adderall isn't kicking in early enough and not wearing off early enough, consider 1. decreasing your dosage. 2. wake up one-hour before you get up for the day and take the adderall. It'll kick in by the time you need to wake up and it'll wear off earlier.