I desperately need a divorce because my ex wife has left and abandoned our 4 year old daughter many many times for drugs sex etc I fear for my child.

She has left us for drug addicts sex offenders and decided to sleep under bridges rather than be a mom and she has not worked a day since Jordan was born I have been working the hole time and she gave all her rights up on her other child and I no longer want her to be around my daughter in our first divorce the gave me full custody I tried to give her another chance for my daughters sake and she left 3 more times again please help asap