What am i suppose to do?

My doctor just told me my sugar levels arent good, im low. In which i need to adjust my diet but im having such a hard time figuring out how to do it. I have a 2 year old and a 2 month old. Both needing full attention (one bc hes a newborn and the 2 year old bc of health problems) what do you mamas do to keep your diet tip top ?