Why my life seems so miserable? sometimes I wanted everything just come to and end, sometimes I hated God for giving me life that i've never asked for. . . .
Renos, I'm sorry you feel this way. But you didn't give any reasons or tell your age.
God, whom you hate and who has given you your life, wants to make it abundant and beautiful. You just need to allow Him to do it. Give Him some space. He didn't create us to torture us or make us miserable. He created us to share His love with us. By turning away from Him, we make ourselves miserable. I don't have a pain-free life myself but I experience and taste God's love and grace.
Good luck :)