When Junior High is Over

It's June and most of the schools here in the US have closed for summer vacation. As a birthday gift to our son,my husband and I closed down our son's home schooling program the day before his birthday. Our son was thrilled to be out of junior high, and headed to senior high school.
As we were preparing a our home ceremony to promote our son to high school. We realized 9th grade would be the beginning of the end of homeschooling for all of us. With this in mind, George and I discussed how important it will be in the next 4 years to get our acts together and build a successful business that will allow Nathan to work for us, and flourish in his own special way.
Nathan has no plans to go to college online or offline. Right now he is just content to be home, watch his cartoons, and other shows of interest to him. His only worries at this time are: What's for breakfast, lunch, dinner, and if he has enough juices to drink.
As parents it is our job to be sure Nathan's future is taken care of. George and I are in our 50's at times we worry about Nathan's future. Who will care for him, if something should happen to George and I. My prayer has been and will constantly be for God to allow me to see Nathan grow up and at least be in his 50's or 60's before I go.
In order for me to assure Nathan's future as an adult, I have 4 years to get my business, whatever it may be, to the level of success/prosperity that will enable Nathan to work in the business, since he does not want to go to college. Nathan's attention span is good for only 3 hours. After 3 hours he is unable to focus on the task he started on. Therefore, I want my business to be functioning at the level of prosperity that keeps Nathan involved in the business, and all 3 of us can be at home enjoying each other. In my mind there are no other options!