R.G.
First of all ... What a great guy you married!
Second ... Congratulations on the job!
You mentioned that you are "finishing up on some chiropractor appointments." If you have physical injuries requiring medical attention, bear in mind your body is trying to deal with that while you're trying to deal with a new work schedule. The combination is a recipe destined to make you tired. Move slowly and don't try to push yourself too far. An exercise program is a great remedy if you're physically able. Energy begets energy so, if you expend energy, your body will have to compensate and generate more - and usually an offset to sustain the system. It doesn't always work that way, however, and sometimes the body is simply too tired or 'sick' with injuries or actual illnesses to sustain any type of exercise program. If that is the case, don't worry about it. Just set that as a goal for the future. You will, after all, be getting exercise at school all day, too!
If your kids are in school, they are old enough to pitch in and help around the house, too. This is a great time to instill in them the habit of being clean and picking up after themselves and being responsible for their own 'things'.
Expect that, with such a transition, you will be tired for a while. As you adjust, you should find yourself feeling better and less tired. You might also want to consider an iron supplement (either in dark green, leafy veggies in the diet and/or a vitamin supplement) to help your blood transport oxygen to the body. If that doesn't help, talk to your doctor.
Good luck!