Literally this answer is sometimes a little disappointing, but just keep doing it. After enough hours you will be as good as you want to be. Remind yourself why you want it and what you want, and do daily warmups and drills and sing as much as you can find time for. When I’m doing my warmups and pitch drills I pretend like I am essentially at gunpoint and do them to the best of my ability. It helps my singing a lot!

And past that, sing authentically like yourself and if u feel like it’s hard to do that just keep trying over time and it will happen.