Brianna and her search for an amulet

I was Brianna Summers. An orphan girl who lived in an orphanage. My life was a mess. Then, a new boy in school came. His name was Anthony Blake. I fell in love with him at the first sight. He was handsome, nice and had a great posture. I had successfully made the popular brats got jealous of me since he fell for me as well. Did you think that I was the popular girl, too? Nope, definitely I wasn't. But, after three months, we were dating, on the day that I thought it would be a very special had turned out to be a disaster. Who killed me? Why? A lot of questions were racing in my mind. Just when I thought I died for good. I ended up into a world I didn't know. Was it a parallel world or was it a place called heaven? There, I've found myself to be destined on something. Should I fulfil my destiny? Or could I just escape? But, I didn't know how to return to my world. I guessed I couldn't do it since I completely a loser. Could I get back to my own world at the end?