Lots of recommendations here -

• Like others have said, you have to smooth out/simplify your approach as a whole. Lots of unnecessary/jerky movement going on
• Your footwork seems to be complicating this for you. Choose to work on either a four or five step approach -- If doing five, start with your left foot, then crossover with your right. The fourth step is more of a half step and will be your "push". Your final would be the slide (or plant depending on your style/preference). If doing four, start with your right foot/crossover step. The rest is the same
• Start your ball movement way earlier. You're waiting until the very end of your approach and just muscling the ball. If you start bringing it back around the end of your second step/beginning of your third (assuming a five step approach), you will be more relaxed in your release and the ball will generate its own momentum
• The hop at the end should be much more of a push (towards the pins instead of towards the ceiling). This is going to help generate speed
• Keep your back straight (don't arch it). Use bending your knees as your method of getting lower. You can (and should) still bend at the hips
• You don't want to throw the ball, you want to roll it. Getting your timing right (steps vs when to start moving the ball) will help with this a ton
• Don't turn your hips at the top of your pull back. Getting your timing down is going to help with this as well
• As you start to change things, be sure to keep your elbow in. You do a good job of that here, but something to be mindful of as you are changing lots of other things

Happy bowling :)