Unplug . Stay away from the bright lights of cell phones, tablets, pc, tv as the may promote more stimulation.
Sleep comes to you. Here are some suggestions: (1) try to exercise at least 20-30 minutes a day; (2) avoid caffeine, nicotine, and alcohol; (3) relax before bed; (3) if possible, wake up with the sun, or use very bright lights in the morning; (4) don't lie in bed awake (get up and relax a while); (5) control your room temperature (keep it cool).
Sleep hygiene is key. Retire & rise same time each day. Bedroom should be dark & cool - used 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. Dinner should be moderate sized & finished at least 2 to 3 hours before sleep. Can try warm milk, chamomile tea or melatonin along w light reading, warm bath, lavender scent.