Please help me

I am so sorry if this is the wrong subreddit, I will take this down if so. I am 13, I don't think my mom loves me, I don't know what to do.
I know I'm probably being dramatic and I don't mean to, she always has told me everything i do is over dramatic. She will come in sometimes and yell at me and make me cry, then get mad when I start crying and tell me to stop.. but if i try not to, she tells me to go ahead and cry. She gets mad at me for stuff i didn't even know would make her mad. She tells me she won't get mad about certain things then does. She won't help me, and she let's my other family members make sexual jokes around me. Like I told her my dad(who often vents to me about his addiction to inappropriate content) left very sexual stuff on the computer he knows i play on often (i didn't look for it, it just popped up when i turned it on) and she just accused me of going through his stuff and always being in adults business and to just ignore it next time. And my family members always make sexual jokes and comments around me(even when I was little) and she says nothing. I remember my mom and dad used to get mad when I would get upset when they commented on my backside being big. She gets mad at me whenever I don't talk enough and when i talk too much. She says everything I do is dramatic. She pretends i have choices in stuff and gets mad when i choose no and makes me do it anyways she always calls me childish(even when I was 5, she did). She always complains I'm too expensive and screams at me about it because I get sick alot and I have to go to the doctor alot and I'm have expensive prescriptions. And she rants to me about my dad and family. And says stuff to make my dad mad at me that's not true. And always says im mad even when I never said that. And she often dismisses what in excited or proud about. What am I supposed to do. Please help. Im so sorry for bothering anybody