Finally did it...

Finally moved out with our daughter last month after an uncomfortable summer living with my stbx/coparent. I dont expect or even want reconciliation at this point. I will never trust him again and it's not worth it to risk my mental health. I think im trying to figure out how to rebuild and live my life now. My daughter is in school, I work full time. My primary focus now has always been getting logistics down when it comes to a consistent parenting schedule, reasonable child support & divorce. I never thought I'd get divorced. Hes so bitter toward me when hes the one who wanted to be coparents. He still expects me to cater to his feelings and lifestyle and gets upset and petty with me when I dont. Maybe hes used to it after the last 8 years together. Im relieved that I dont have to bite my tongue anymore, I feel I can express myself now without worrying about backlash because I finally dont care what he thinks of me. I feel he's already done the worst he could ever do. He threw his family away because he wanted to be with someone "easier". He wants what he cant give. Things like peace, respect, loyalty, transparency & committment. I feel I have prioritized his needs & his other coparenting dynamics long enough. He admitted my needs were not his priority and that was one of the last straws that broke the camels back. He cheated on me for years and never truly stopped but said he "did his best". Anything to avoid accountability. One day hes going to understand that what he did really was that bad. I did consultations with divorce attorneys I have one in mind that Im pretty sure I want to move forward with. Just have to save up money for the uncontested divorce but thats pretty difficult to do when my stbx does not provide enough money to support our daughter. He keeps telling me he is up to his eats in bills...... like I dont have bills either? Im tired of hearing his excuses. He tried swapping weekends for a trip out of state to see family.... how does he have the time for that? Am I wrong for wanting to seek full child support? My only other concern is how this will affect my daughter's half sister. That other coparenting relationship he has has always been full or drama and secrets. Idk what to be prepared for at this point.