39 weeks preg.. had somewhat of a turbulent past 8 weeks in regards to health stuff and am just at the end of?

my tether.. i'm tired, feeling somewhat down and useless (as i can't contribute much in the way of household chores like cleaning etc), trying to run around after kiddies and just feeling somewhat housebound and flat. Even went to the extreme of paying $200 to get my hair done to make myself feel better but nada... just wanting it all to be over and done with so i can get back to it all... i think im feeling somewhat scared and anxious about the impending birth as well as the rest... any ideas on staving off these down feelings?