Your work calls it wrong, that's 2nd or swing
I used to work swing, start at 1pm or 2pm depending on the season/ weather/ demand, and get off when the work was done, sometimes 10 or 11 on a Friday, but usually midnight-2am.
I showered and crashed when I walked in, slept till 8, maybe 9, and had 4 or 5 hours with the kids and projects. They weren't in school yet, it was great.
Never had traffic
"Your neighbors probably think you're a drunk"
One neighbor was surprised I had a job, they thought I just fixed cars all morning
I think that since you run your business, I would force myself to sleep after the job, not go check on this one little thing, pull up, eat a big dinner, take a shower and crash out. When you wake up, you can put out fires, knowing you have to leave for work at a certain time.
It might take a few days, weeks, but you need to be consistent