I can’t normalize the regime of the day: I go to bed at five o’clock in the morning, I get up for lunch.
Try shifting your schedule gradually, every day go to bed and get up a little earlier.
I have tried, the will is lacking.
Then try the other side! Go to bed later - first at 6 o'clock, then at 8 o'clock, then until lunch for a compot... gradually until 22 o'clock you will arrive!