help save my rights to my daughters

I am a single mom I was married for 5 years and come to find out he abused my daughters; They never told me.
Since March of 2018 I fled Texas due to domestic violence. I have had to come back to Texas for custody cases in August of 2018. I have spent over $2,425 in fees and I only have $2,000 left. One lawyer I have spoken to wants $5,000 the other wants $4,000 there is 2 cases. as a single mom of 5 which 3 are at home, I am trying to do the best I can . I raised my girls until August,2017. Anything will help me and bring my divided family back together again. Thank you for your support.