How do I get over them

So I have a daughter with my bd and we aren’t together, we haven’t been together for the longest, he wasn’t there for my pregnancy, he treated me so bad for my whole pregnancy and even when I lived with him and his sis they kicked my son and I out I ended up having to find me place meanwhile I was 8-9 months pregnant ready to pop they didn’t care never did. My daughter is 7 months now and I don’t get along with any me off them we’ve always had problems we never get along, a month ago his sis and mom without my permission cut my daughters hair. I let my daughter stay there every day till 3pm and on Sunday’s till 8pm there’s no court order he’s not on child support. I just can’t deal with this anymore I legit just rather disappear with my daughter and never hear from neither one of them I have to talk to her dad everyday and it kills me that I still have feelings for him but all he sees me as is a piece of meat. I just wanna get over them, when I mention that I’m still upset about the cut he brushes it off and tells me to get over it. Idk what to do there’s no court order and I’m very nice to even let them be around my daughter when I’m reality they shouldn’t especially how hateful and evil stuff they’ve said to me