Why am i feeling that i was wronged all of a sudden?

I’m going to keep the post short asf. But basically I’ve struggled with tremendous anxiety and depression for the most part of my life. Like since i was 15 mainly. I didn’t get much emotional support and I’m alright now. But in the past few days I’ve suddenly felt like a lot of people who i thought were nice just don’t seem like that anymore. Including my elder sister. I still at times feel this sense of distant energy and as if I’m not being treated well. I also stopped talking to my friend of ten years and more when i fet as if she was crossing certain boundaries.

This is most context i can give ig but i just wanna know if it means smth or am i overthinking.