nice, man. You look like you are improving a bit. don't worry about trying to kick high until your technique is better, just keep practising low kicks and body kicks. practise the wide forward step (kinda like a diagonal direction) with your right foot and throw the left leg into it. You can step forward with your left and throw a right kick better aswell.
It doesn't look like your guard is strong at all, if we were wearing gloves and I hit your glove, you would basically punch your own face. Just focus on keeping your arms strong.