Im felling sad and alone , what i can do ?

Im 15 years old and i not in a social group for a long time ... my last time when i had a social group i had 8 years old , im felling really bad ... and im gay 2 , it sucks ! ... my dad know it , and he is felling really bad about than i think i just to bad thinks for my family ... sometimes i just want to die ... =(