My kids were taken from me

My name is Tiffany Johnson  3 years ago and I am in the process of trying to get my kids back and I am trying to pay for an attorney and it is gonna cost me  1000 dollars to get him to take my case.When my kids were taken from me I was given vistiation but i am not getting them i have seen my son 1 time in 2 yrs and I get to see my daughter only when I catch them in walmart please look into your heart and help me in this time of need so that I can get my family back...