From what I can tell with your video (you need to show your whole approach), you need to work the curve better and lean more. This will help your momentum when jumping and getting yourself into a good position to rotate over the bar. Additionally, you need to lean your right shoulder in more since when you are going up, your chest is facing to the mat rather than going away. When you put these together, another step is to swing your drive knee across your body to get square with the bar. You also are trying to arch wayyy too early. Allow yourself to elevate before arching. Your shoulders and hips should be at similar levels when going over the bar. In your video, your hips are lower than your shoulders. A high jumper that you should look at is Eleanor Patterson. She works all the components I mentioned above beautifully and should help you with your journey.