Hey Melat....how are u?...when you said you hate flying....is it fear or you just don't like long flights? If it is fear, I would recommend you to google on how airplanes are made...that would make you mind belief that airplanes are nothing but a vehicle to take you from one place to another place faster than any other vehicle. If it is just a boring thing to flight long flights, I would recommend you to take stuff like neck pillow, iPad, video games etc. Hope this would help, but if it is not none of those two, please let me know and I will try to let out whatever I know and help you the best i know how.
In addition, don't let any negativity, such as past incidents or what had happened before in airplanes affect your trust. It is good to be informative but not be fearful.