Recovery takes time
It is important to take enough time to feel fully fit again after having sex under the influence of drugs. The longer and more intense you have partied, the longer this recovery process will take.
Keep the expected comedown in mind when planning your sex date.
Try to schedule the sex date at the beginning of the weekend to give you time to recover before the new week begins.
Take a break from one to several days without too many commitments in the days after use. This will allow you to deal with the comedown more easily.
Get outdoors regularly, take a walk, ride a bike, or do other light physical activity.