Nicky, you're vocal timbre has improved since I last heard it, especially in the lower-mid register. I was actually pleasantly surprised.
However, you really need to work on your control and pitch. I don't know if you're still seeing a vocal coach or not, but regardless, you need to find someone who starts you off on the basics of pitch and control. I know that might seem like moving backwards, but I have a feeling you and/or your vocal coach pushed you into singing very difficult songs before you were ready. It'll be boring, but you will thank yourself later.
The entire time I listened to this latest video, I kept thinking, "this kid would be halfway decent if he was hitting the right notes and holding them". So please consider my advice and use this as a challenge to strengthen your voice where it's weak.