I had the same issues for a long time. Here are some things that worked for me: - Young children! They will tire you out to the point that you will actually sleep. - Doing what you like for a day job. Makes a big difference. - No screens for an hour or even two hours before you go to bed. Consider not watching TV. I haven't seriously watched TV for years and am much happier for it. - Get obsessed with something outlandish or random. I am building telescopes and gaze in to the depths of space. Gives me some perspective on life on the small blue marble we're on.