Can somebody help me?

Ok, so during 2002-2005 my sister was being (anonymously) d constantly by my dad, and my dad viciously beat me, when he was angry. now that the truth was out, and he was finally cast out of my house, he has taken a turn for the better. my brother, who never went through anything hard, destroyed my computer, and since he was an example to my dad of unconditional love, my dad made my computer super fast etc. and gave it to him. he gave my sister his homemade japanese food, and gives my abused sister, anything she asks for. nothing for me. he sais he appreciates my, but is that enough? he sais he is worried about me, and when i actually congradulate the pie's he makes us, he makes pie's all the time for my little brother, but none for me. he hasn't done anything to help me. now i am sad, i am male and i don't want to be sad. i wish i had a best friend, but where i live, thats kinda hopeless. can anyone help me, tell me how i should feel, and what i should do, if i can even do anything at all? by the way, i am the most brilliant of all the people around me, becuase, when i was 7 i was thinking, shouldnt light be made up of small things i cant see, and move in a wavy pattern at extreme speeds, and flash on and off so simultaniously, no one can even see it? well that same day, i went to a presentation, and i was completely right. another time, i was 1/2 years old, i had a dream about spaceships, and saturn, sun, earth and jupiter. and i was flying around, shooting lasers at people. is this a coincedince? i have so many inspirations so complicated that when i learn about in physics, my ideas were right. but yet, even if i say this, my mom underestimates me, thinks i lie or whatever, and no one else recognizes my ideas. when i was small, 5 or 6 years old or so, my parents fought, and i came up with amazing conclusions that only adults could think of, and so many things, yet my mom saw that, didnt do anything about it, and my dad completely ignored/beat/unselfishly accused/worst dad ever my whole life, i have now degraded. i cant do telekinesis, (not witchcraft), i cant do anything except be ok at everything i am motivated at. Also, i am gay, and my family and the community i live in detest gays, and i need support.