You have a very tight knit circle going on in your house, you are a SAHM, you home school, so your son is there and your hubby works from home. That is alot of togetherness and perhaps
some thought might be given to making some changes in your life. You are educated and capable, perhaps finding yourself a job out of the house and allowing your son to go to a regular school might be of help in untangling this circle, IMO there is too much of a power struggle going on, too much control being bartered for.
Getting healthy takes lots of work and time, it does not happen overnight, keep moving forward at your own pace....Rome wasn't built in a day.