Custody Questions

[Not real names ]Ok so MOC ( mother of child aka Sara) basically took kids from me during my divorce with ( let's say her name is Holly) iam staying at my gf bf's house ( poly/ thruple but not it's complicated) any ways left exwife. MOC now basically has kids full time because of my living situation and well she now makes all the rules when I try and ask for anything she throws in my face all my past mistakes. Iam trying to get my own place soon but I honestly don't see how I can take two kids full time or at least have them in school... MOC doesn't work her husband works so she can watch them after school/summer and her parents can to the all live close together. I live across town and don't have the resources she has on family. So I guess my question is if I was to go back to court and get something how and what could I get. If I got something like 50/50 ( which is what we had) I don't see how I could make it work without them basically being home alone and I don't see a judge being ok with that. How can I stop the disrespect she shows me when I ask for something. I consider it emotional abuse but I live in TX and well this a Mother's state so iam basically not a man if I can't hold my shit together. Example in this conversation of how iam treated.. ....(((Me )))) Iam off next Monday since kids are out of school is it OK if I keep them Monday as well and return them Monday night.......((((MOC))))) Well about a week or so ago Holly asked me if she could see them this coming Monday… I told her yes, but I’m guessing now if she’s in town and you’re off Monday that y’all have court? ????.......((Me)) Yes..... (((MOC)))) Ah. You cool with her seeing them Monday and I can give you some extra time on my weekend coming up or something? ???? I know Courtney is a sensitive subject, but for the kids I’m trying to give you both time with them ????????‍♀️......(((ME)))) She doesn't need time with them she is my ex wife iam literally divorcing her and it will be finalized Monday. After that what yiu and Courtney do is between yall but I would like to have them the extra day on my weekend. Iam there actual dad......((((MOC))))First off, watch your tone. You don’t tell me what to do. Second the kids will only ever know her as a step mom, you said yourself you were never getting married again. The way you left her wasn’t exactly nice. The way you left me wasn’t exactly nice. The way you left Erin wasn’t exactly nice. Now your living as a throuple. You don’t think the kids are confused and haven’t had quite a few questions about your track record? About what your situation is now? About their brother? If they want to see Holly I’m gonna let them, I already told her yes a while ago, and if you want my whole weekend that’s fine, it would give you 3 weekends in a row. I’m offering you more time than just Monday because you’re their dad ????????‍♀️.....(((Me))) k.. I'll see kids friday....((((MOC)))Ok, sounds good. I’m really not trying to fight with you about this. Like I said I know it’s a sensitive subject, do you want the 3 weekends in a row? We can talk about you having some extra weekends if I don’t have plans with them through the summer ????????‍♀️.. .... .....((((Me))) Yes plz .....(((MOC)) Ok sounds like a plan ????........( end of example).... I absolutely felt attacked and belittled by her when I ask. I don't know what to do or how I can continue this. This is not co-parenting to me... what legal advice would you give

Edit... ok maybe I do overreact. I do agree with yall I see that now. Thank you for shinning the light that. I sometimes over look. I do appreciate yall.