stress reduction procedures will help. try some relax time before bedtime, music (soothing), reading, meditation, decelerating activities, so that when you do turn the lights off, you have already “slowed down”. make a list of next days activities, so you do not take the thoughts to bed, also a pad of paper at bedside for those ideas at night, get them out of your head and down on a note. FWIW. good luck.