Throwaway account

Been married 15yrs both in our 30s 3 kids 6-14. She's cheated 9x over the 15yrs both emotionally and physically. She makes more money by about 10k. Has always spent all the money leaving me to pay bills. Belittles kids to parent has an anger problem and has always taken drinking to far when she does drink. We're talking black out to hour long rants about all her problems. This is our 2nd round of counseling I scheduled it of course. The counselor said I may be out of forgiveness which I am. She said I needed to determine my self worth which makes me think this will never stop because it didn't the first time so why would it now. My question is being the kids main caregiver the one who cooks and puts them to bed and the ine who gets them up and to school....what are my chances to get custodial and keep the house that's pretty much all I care to get she can have retirements bank accounts whatever else...I just want peace and older kids want her gone they ask for it even beg for it from me.