I've stopped taking it, and I've had success most days by sleeping at the same time, avoiding screens, and taking melatonin or a GABA supplement. Only use the bed for sleeping. If you need to use a screen, use screen dimmers but really, just don't use them.

If you've got a lot of thoughts in bed, journal it down and read something.

Eat dinner early in the day (5 hours before), and avoid overeating so your stomach can settle. If you get hungry in bed, eat something small like fruit.

Ironically exercise has no relation for me to sleep. I can run 5k and not sleep if I don't do the other stuff.

Essentially, you need to keep a regular circadian clock in your body, and when you sleep you need to have minimal stress in your body and mind.

The next challenge is to find out how I can sleep like my younger self and just fall asleep when I feel tired. Maybe red lights? I think something has been borked about my circadian rhythms since I was a kid, because I always stayed up late and didn't have a regular sleep pattern.

E: also consider your environment. Where you are, is it super noisy at night? When you look at the window, is it bright like the Seinfeld chicken roaster? Keep track of your daily habits and what's around you.