That is a valid question. I have no schedule whatsoever, i go to bed when I want and get up when i want. I take a couple of weeks off if i want to go on a vacation, or work 16 hours straight. Anything goes.
A couple of years ago I started writing down on notepad what I needed to do the next day, that way when I get up i see it and it reminds me of what needs doing. I dont always follow it but it helps.
I also dont work straight. I might do an hour, go to a store or for a drive, work again, read some, work a little, etc.
Antoine