This is too much, what do I do?

I'm getting bullied by this guy named Kyle. Then, I have a friend/enemy named Hailey... She always causes drama for me! She always is mad at me, and we always get into fights, her always starting them. Like, today, I playfully poked her with my pencil, and so when I sat down, she got up, and poked my arm quite hard and I kind of yelled of pain because of my sunburn, it felt like someone cut my arm with a knife, and she started freaking out at me saying she didn't want to get poked by a pencil, and when she poked me I just got over dramatic about it and stuff like that. I tried to explain this to her, and this guy named Malik walks up and says to me, "Haa... how do you feel when nobody likes you?"and I tried standing up for myself, then he brought my friend into this, saying she always talks behind my back... and then, I still have stress and sadness from Kyle since January... he put me through A LOT since January, and then I never get to see my birth mom and my dad... I haven't seen my birth mom since last year, and I haven't seen my dad for a little over a month, and when I do see him... when he gets mad, he scares the he.ll out of me... just ugh! My dad can get abusive, my 5 year old step brother got my dad mad, and my dad hit him, and then lifted him up by his arm onto his feet... my dad also pushed my little step brother.... and my dad's also an alcoholic... Just... ugh... This is too much... I'm 14 and I dread going to school every day, because then I have to see Kyle and Hailey, and then others who pick on me... and I really don't have many friends... I have ADHD and Anxiety, they REALLY don't help, anything at all..