Cutting people off? Family wise

Is it okay to cut people off, if they're your family? Maybe only distant yourself?.... For sooo long I've felt like my family can't stand me. And by family I mean my mother, and older sisters... The 3 of them get along way more, than with me. I happen to get left out of things.. And well I honestly feel like, if I can't come off of money or babysitting then I'm not good enough... Yet, when I was younger. That's what I was pretty much used for.. I would take care of my sisters kids aandd when I started to work, my mother would take my whole check "for bills". And now, that I am an adult. Living on my own, and not babysitting. I feel like they only tolerate me. Buutt ain't no good, since I'm not paying any "bills" for my mother oorr watching my sisters kids... Would it be wrong of me to sort of distant myself??... I see my sisters everyday because we work together.. but other than that, it's a only when there's events kinda thing. And well, with my mother its about the same.. Or whenever I need some cooking advice. Or if I happen to go by and visit... I feel bad sometimes, that I can't give her money, because at times I'm trying to make it through the week myself.. And well, I don't babysit, because I don't have kids. And don't really do kid things. Unless I feel like it, but that's hardly ever. Because I'm not going to lie, I love being by myself.. I'm sorry, but I've lived with them all while they were smaller. And dealt with them... But seems like they don't remember all that... Anyway, sorry If I'm all around or if it's too long.. Sort of venting here, sad that I feel like this. But I remember telling my SO that if I've ever moved out, I wouldn't fuck with them (pardon my french). And sometimes I feel like that........