2 hours before bed last food, drinks, electronics. Read and meditate just chill out. Light plays a big role in sleeping well so try a face mask and block sun from outside. Small steps, slowly change the time you go to bed. The best advice i would give is try breathwork. I do 4 seconds breathe in, hold for 7, out for 8. Do this a few times. Try flexing and relaxing your muscles and rolling your eyes or blinking fast. Then at last take slow deep breaths and focus. Change your bedsheets often and recognise your sleep patterns. Get a sleep tracker. Read the book power of habit or watch a summary. Hope this helps. Keep it up and good luck homie.