why..?

I don't get it why do people not like me? I try so hard to be kind and sweet and nice and yes I have family problems and I deal with mental health and I get mad fast but why do people hate me so much? people are so mean to me. I just wanted to show my sister something I loved and she got mad at me because she was doing something on the phone my sister is so mean to me and I don't know why. I love her so much I given her some much shit, and am also nice to her and I get nothing but hate and at school my best friends who were there for me in my darkest times and I was there for them I literally held one of them as they sobbed in the bathroom and then now they laughed at me for crying with my grandma died and they said they never like me. I try so hard to be liked. I don't get it. and why is it so hard to fall in love? I want to fall in love so bad to feel that feeling everyone talks about why don't I get to feel that? why. I have so much love to give but no one to give it to. and then people get mad at me when I crash out like bro you have no fucking idea what's going on in my life like tf? and am so protective over my friends but I also have awful trust issues because I have so my kindness and love in my heart to give to my friends but I also give it to the wrong people. am I really that hard to like? am I that annoying? am I that stupid? am I that Ugly? I don't get it. I fr pay for a comfort character email to be sent to me at a random time and like 40 minutes ago when I was also crying I got it, it was a Eren Jeager one and it was a cute love email and I cried and cried hugging my computer over someone who isn't even real. I just want love.