Could one with anxiety take melatonin?

It is possible for : An individual with sleep problems who suffers from anxiety to take melatonin. Ensure that excellent sleep hygiene is used as well. Retire ; rise same time each day. Keep bedroom dark ; cool ; use only for sex ; sleep. Turn off tv. No naps. Exercise regularly but not in late evening. No caffeine for 6 hrs ; no alcohol or tobacco w/i 2 hrs of sleep. Keep dinner moderate sized ; finish at least 2 to.