JimD, I had to read your message twice to see, what the problem was. You are working at night! So in addition to all problems of office workers, you are out of sync with your family. I don't know how used are you to the nocturnal life, but it can also cut your overall productivity. You are living most of your life without seeing the natural light. It must be very hard.
I wouldn't suggest quitting your job, but if you have any chance of changing the job to the one that happens during the day, it may be a good idea. Even if it is longer commute, longer hours, you'll be better off because you will be more in sync with the rest of the people.
Also, are you very busy at work? I mean night shift at tech support should have some times when there is nothing to do. If your boss is understanding, you could use that time to work on your own projects. All you need is to think and maybe write down some things that can be used at home.
Another approach is to think about your financial situation. Can you cut your expenses? Can you save more? You don't have to have "projects" and "business" to create income streams. Good old investments can do wonders. But you have to free some money for that. Your kids are making it harder for you, but may be in return they can help you out when they get their jobs?
What does your wife do? Can she contribute to the funds? I don't know your situation and what is appropriate in your family, but at your age you have to act efficiently on all levels, not just on the level of day routine.
You seem to believe that the projects will give you the money, which will give you time. If you free up some money without projects you may get your time faster and in a responsible way.
Try to find a good financial planer, ask for the ideas, how you can get some investment income. Even if at first you will make just a few hundred dollars a month, you can then downshift to a less taxing job.
Hope some of the ideas helped.
In terms of time management, I see that you mention taking out trash as something that you do. Why you do it? Why can't your son do it? I'm using this as the example of delegation. You've mentioned trash, but may be you can delegate something else. It can give you some free time.
Also, do you have your "breakfast" and "supper" in sync with your family? If not you are wasting the "family" time that can't be made up during weekend.
Try to substitute reading with audiobooks during commute and morning routine. This will give you the chance to go to bed earlier and subsequently wake up earlier.
Try batching as much as possible - for example iron all shirts for the week in one go, the same for the repetitive steps of your "morning" routine that can be done beforehands. If you cook your own meals, can your wife help you?
At some point I've laid down my route around the house during morning routine on the floorplan. I've noticed loads of inefficiencies, unnecessary returns, loops etc. After moving a couple of cupboards and changing the sequence of the steps, my route was shortened ten times and my overall time for the morning routine has shortened five times. You don't have to brush your teeth in the shower as I do, but it can give you an idea how far optimization can take you.
Measure your time at home. At least for a week. Have a stopwatch and a short notepad. Mark everything you do and how long does it take. If something surprises you, try to optimize it.
Also, try to cut your preparation time when working on your projects. Have a desk where you leave your stuff the previous day, so you can come back and continue. Being neat and packing everything up can work against you. Use sound blocking headphones. Since you are working during the time your family is likely to be active and noisy, you might need to do it, to protect your productivity. Minimize interruptions. If your family expects to be able to walk in on you and ask for a favor, explain that you have to have undisturbed time. At the same time, when you are with them, be fully with them.
I can go on forever, hope this all gives you some ideas. If you have more detailed questions, ask away.