I’ve learned that if you make your body physically tired then your brain will have no choice in when you sleep. Drink a nice warm cup of bedtime tea, unplug from all electronics, about 2 hours before trying to go to bed do a good workout and take a nice warm shower, read a book that’s relaxing. Listen to calming music, try not to give your brain a lot to think about.
Try to do some breathing technicques Search for some meditation before sleep And always remind yourself that tomorrow going to be better and sleep I needed to rejuvenate you and your mind and it’s useless to think about things now because it will not change anything