It must be nice to have a bag handy right there! And good on you for putting your video out, to get feedback from folks. (I keep meaning to do so, and forget to actually make a video when I'm at the bag.)
A couple of recommendations for your practice. First, I'd work on keeping those hands up consistently. You have video of yourself, so you can check after part of a training session to see how you're doing. This one was focused on kicks early, and if you're like me, that's when you're most likely to drop your guard, because you're not thinking about your hands at all. In fact, every time you went back to kicks, you seemed to drop your hands before you'd kick, so working that transition with the guard up would be a good idea. The other thing I'd focus on is the way you're being pushed off-balance by the harder push kicks, especially early in the session. That suggests you're reserving weight away from the kick, but trying to kick hard at the same time - those two rarely work well together.
Keep at it, and keep sharing with us!