i hate my life

As i thought things are getting better they seem to get worse. My ex husband is controlling every bit of my life and won't let me have my children They are very unhappy with hiim and they have told him over and over but he just doesn't listen.  I dont have any money for a lawyer and  need to have my children back again.  and the worse part is that my boyfriend is out of town seeing his kids and i have nobody here...