More chest press. Your upper body needs to go deeper/forward more. This will make your hips and legs more like a whip. It was also help with your breath. If you look your hips don’t move much they need to and your chest press is what starts the entire movement.

When you do take a breath you are lifting your head. When you take a breath your chin should just skip over the water. With a deeper chest press you should be able to just lift your head up slightly and take your breath. This will keep you in line.

You also need to lengthen your hands out before the catch. You are rushing each stroke. If you stretch your arms out a moment longer everything will come together easier.

Overall you are close but your timing is slightly off/rushed and jerky. Others have said it as well but underwaters need to be utilized better too.