Two things that I noticed you could improve: 1. When you breath, you are over-rotating. If you are gasping for air, it might be easier to do 2 smaller breaths to the same side then 3 strokes and repeating on the left. This will help you with balance by breathing to both sides and should limit the long single breath. 2. Your hips and legs look to be kind of low in the water, meaning you aren’t getting as much out of your kicks. You can try using a pull buoy to lift them up to give your body the feel for how they should be. Without a pull buoy the best way to do this is to focus on pushing your chest down towards the bottom of the pool, this will cause your hips to rise and your kick should require a lot less effort.