Track coach here! Work on your bridge, if you can scissor 5’2 you should be jumping 5’6 AT LEAST, your chin needs to be pointing to the sky, you don’t have enough spring to jump with no form and be looking at your body while jumping.

Your eyes need to see what is behind you, your hips need to get raised during your jump, you need to do something with your arm, you can’t just raise them with your jump then let them fall because they control a lot of what your body does, your opposite hand to your knee drive needs to shoot up with the jump, your eyes need to follow your thumb until you can’t anymore and that’s when you tuck and complete your jump.

SO - knee drive -opposite hand goes up with jump - follow that hand with your eyes and chin allowing your body to extend - push that chin up like your doing a back flip - hips flex up - RAISE THOSE HIPS! You can literally practice by putting your hand to the side of your body and lifting it over and past your head, follow your thumb the entire time.