You being a single mom of two girls 10 and 12 and working full time...hmmm that spells stress to me. One of the workshops I provide is SOS (Solutions on Stress). In the workshop I discuss how diet is very important, meaning getting enough water (1/2 your weight in ounces) and getting good nutrition.
Since you are on the run alot, does that mean alot of fast food? Getting a pure source of protein in your diet would help. You may have problems with just keeping your blood sugar stable.
In addition to the workshops, I provide nutrition consultations. There isn't a charge for the first consultation. Typically I do this over the phone. If you are interested, contact me at ____@____.com Beth