Give me ANY advice to clear up my insomnia

1 min clean, i could not sleep, why is is so hard to sleep at night for me?? No matter how hard i try, i did all the tactics, my schedule just keeps shifting into sleeping at 4 am, i dont understand, im not SH'ing because i cant sleep, i just do it cause i dont know, im just addicted to it.

For all ive known its been like this for years now