Of course suicide is very difficult as we are programmed to survive, even know we want to die, it goes against our instinct to survive. We are cruelly denied a peaceful exit so we have to resort to methods like jumping. I believe that, being at a point of complete desperation and hopelessness where you cannot take it anymore will make it more likely for the fear to be overcome. It is a feeling deep down that you know it is time to exit. I wish you the best.