Use your bed only for sleep. No screens for a few hours before bed. Milk before bed. Reading or audio books are a great way to settle your mind.
If you aren’t asleep after 30 or so minutes get up and do something chilled for a little bit. Laying there getting pissed you aren’t asleep doesn’t help.
Stick to a sleep / wake schedule. I’ve found getting up early and consistently much more effective for sorting out my sleep.
This is definitely the answer. Bonus points for contextless clues to getting the other half.