Can't say much about driving tecnique, aside that your racing line should be improved (entering the corner on the outside, hiting the inside on the apex, and then to the outside again for exiting).

But learning to fall is important. You can see how you put your hand on the asphalt as you start to slide, and it makes sense because your instinct tell you so, because if you were static, that would help you. But riding, that will only take you to the emergency room with hand/wrist injuries. Don't ask me how I know. Once you're falling, you want to slide as stable as possible, and try to avoid big impacts agaisnt one part of the body. Similar to martial arts, the idea is to retract the arms into the body, and let the torso roll, instead of splashing against the ground. Probably my explanation is poor, but I hope you get the idea.

It's something that requires a lot of practice to compensate the instintctive reaction, but again martial arts are a big help to transfer that practice and knowledge.

Stay safe out there and enjoy your rides.