Is it a depression or just over thinking

the start

It all started from my school holy family a small city school but the bullying was real I had no one to talk to sure my parents were there but they couldn't understand me they still don't writing this I am crying because the walls are closing up to me and I have no where to go . I just hope some reach out me me before I finally drown . my family don't listen to me they leave me some where or the other talking to makes me feel like I am talking to a wall when I am talking to them they wont even look and act as if they are listings, I have been fat shamed , compared to my sister for her brains and many more things . I know my family wont let me  saying I am over thinking or I don't need one but I have no friends to reach out all of them faked being friends with me and left me behind. I don't know what I am going to do but post this in an unknown site where my family or my friends don't judge me