Trials and Tribulations

I have had a horrible season this year! I have been injured most of the season and have not been able to get my body to do what it needs to. So far, my runway is where it needs to be; I start off slow and go faster and faster until, at the end of my runway, I'm at full speed. My plant is also where it needs to be; I plant the pole in the box and take my last step at almost the exact same time. Where my problems come in is everything after my plant. I do not explode off the ground, drive my knee or turn in mid flight to get over the bar. I don't have a problem with doing this for my short runways; but have me do a long runway and it all falls apart. So far, I have only cleared 8ft... My school record is 9ft.... I only have a couple of more chances to improve before the season is over. All I need to do is explode on my takeoff, drive my knee until I'm upside down and turn my body before my pole hits 90 degrees.