Can you take percocet and klonopin (clonazepam) together? if not, how long do you have to wait between the two? having anxiety from taking percocet that possible?

Not good together: They can both cause drowsiness, dizziness, impairment in coordination and slowing of respiration. If you need an anxiolytic you should consider a switch to a shorter acting benzodiazepine such as Ativan or xanax (alprazolam) instead of klonopin. If you are not suffering from severe pain consider a switch to Ibuprofen or Acetaminophen from the percocet.