<human>: So this is pretty insane to me. Definitely very far off from anything I ever thought was possible in my family. Up until the past month, I thought the makeup of my immediate family was as follows- my big sister [27F], my big brother [25M], my mom and my dad [50sM]. All nuclear, very normal, no problems except for my parents almost divorcing a few years ago. Little did I know, this was because my dad found out my mom slept with his younger brother and I came along. I've always been told I was an unplanned pregnancy, but no one ever mentioned to me that I was possibly the illegitimate child of my uncle. 

Apparently, they've never done a paternity test because as far as m parents are concerned, I belong to my dad. My brother and sister found out very recently as well. My parents decided I was old enough to know I guess? 

I've always had a lot of issues with my mom, my dad's always been there for me. They say nothing will change but I'm going out of my mind. I don't want to recognize someone else as my dad. My uncle's a great guy, he's successful, he's always been amazing to me, he's married to my aunt and they have three kids together F[14], F[20] and M[21] who I love. I know my cousins don't know but my aunt does. She's never treated me as anything but her niece that she loves. Obviously, everyone in my family is handling this in the best way they can and treating me fairly but I just feel so displaced. How do I continue being a part of my family knowing I'm halfway in between my siblings and my cousins, getting to feel like I belong anywhere? I'm sorry if this is scrambled, I'm just very confused and upset right now.

Give me a shortened version of the text
<bot>: My mom and my "dad's" brother had an affair 20 years ago, turns out it's most likely that I'm my actually my uncle's kid, where do I go from here?