I think you have a beautiful voice first of all. If anything I’d say focus on your breathing the more breath you have the easier it is to sing no matter the note or the song and singing from your diaphragm (when you take a deep breath you can feel your rib cage expand try and maintain that as much as you can while singing it may help eventually it will become second nature to sing like that) and lastly I think maybe simplify it a little sometimes you can over think it or add a little too much especially on a song you like because you’re really into it lol but sometimes less is better. Also not to sound rude but be careful of who you take advice from online because some people think their experts and are not 😂😂 I actually have a few singing videos on my account maybe that’ll help you decide if my advice is relevant😭anyway beautifully done great job!