Dawnc I am amazed at all you have been through. It takes an inner strength to go through all that so when you feel you have nothing left in the tank just remember it took that strong woman to get through all of this in the first place. She is still in there. When you feel like you cant get any lower the only way is up. Can you ask your friends or family to visit you and you may not feel like having them around but they are your support and they are only waiting for you to ask, I'm sure.
Find something that interests you it could be something you haven't done before but not too complicated. Its good to take your mind off your worries. We are all here for you any time. Be gentle and kind to yourself. Others have suggested lots of ideas too. Keep the faith and you will rise above this xxx