I want to hurt myself, I’m so sad.

Hello, I see that this is a site where people share how sad they are and there are some helpful people out there. I hope I can get some nice feedback from others. I want to start off by saying that I am 21 years old. My grandma had passed away and it took a big toll on me. My family too of course, but for me I wanted to die. Ive attempted to kill myself and this sweet genuine old lady passed away and in my eyes it wasn’t her time to go. It honestly should’ve been me. Recently I’ve been kicked out of my house by my parents due to a big fight that went on. To sum that up, it was built up sadness and anger that took over me and I just blew it all at them which ended up me getting kicked out. Most of it was towards my mom..So now, I live with my grandpa. I don’t like living here very much but I got to bring along my dog who I see as my literal life line. He’s honestly my best friend. I never had a good relationship with my mom, I really feel like we always were together so much and it kind of bothered me? Because we never actually got to have a good time, we just always fought even over the littlest things. I was also diagnosed with depression a longtime ago. I overdosed in the summer of 2018 on Benadryl because I was ready to die. It feels like nobody cares about me. That feeling has never left. Not one time.When I overdosed all I got was my family yelling at me. Nothing but them telling me how dumb I am and how selfish I was for trying to kill myself. It made me feel worse and to this day I think about what they said and it makes me feel bad still. I developed a disorder called TTM, also known as Trichotillomania. This developed when I was around 7 years old. Its a hair pulling disorder which causes you go to bald depending how severe your disorder is. Its went away for around middle school and my high school years but unfortunately, it has gotten worse for me AGAIN. When im sad I seem to do it and I only pull the hair from my head so I have such bad scaring and a sensitive scalp because of it. I feel ugly, and seeing my bald spots make me feel uglier. You’d think I’d want to stop but I can’t. Sometimes I don’t even know im pulling until its too late and I have such a big clump of hair next to me. It hurts to see it but I just feel helpless. I get told to take my medicine which I am now taking Fluoxetine, and I feel it doesn’t do much. I get told to up my dosage but that doesn’t seem to do anything for me either, I really have no hope in doing anything. My mom has repeatedly told me that I “wouldn’t be so sad” had I taken my medicine every singled. I PROMISE you, I have and It has not helped me. Ive switched to many different anti depressants and the one that was super effective but in a negative was was Duloxetine. It made me feel no emotion and I was just tired all of the time. Now im back on Fluoxetine and it doesn’t help me either. I’m just so sad and I don’t know what to do anymore. I get yelled at for going out to walk my dog, get yelled at if I go get food for just my dog or just myself, and the people I live with just always want me to bring them stuff when im not able to buy 3 other people things all the time in the household. Ive been saving my money up to get a new place but it always gets depleted because they find a way to make me feel so bad about not spending money on them and its making me even more sad because I feel like just stuck. I started to cut myself again and I want to hurt myself so damn badly and I can feel myself everyday wanting to hurt myself again. I need help but im afraid to be sent away. I’m honestly really at my wits end. I’m about to overdose again. And the only person that I know will care is my dog. It hurts that I don’t want to leave him but I feel like I’m not going to get anywhere with how im feeling. I’m sorry that what I wrote was a lot