Keep my children

My divorce has been final for years now.  My children who are with me want to stay with me.  Although everything has been settled in court and dealt with, their father keeps filing motions on me to keep me in an ongoing court battle that has left me broken.  Trying to maintain a home and keep everything together has been difficult due to all the distress from these court battles.  I need help paying for my attorney who will represent my strong defense and finally put an end to all of it.  Please...I cannot fathom losing my children and their father is gunning at me trying to ware me down.  My attorney needs this amount of money by January.  I am tapped out and if you could see me, you would know just by the look on my face.  Please,help me.  I am begging and pleading.  Thank you.