I feel completely lost on how to feminize my voice the right way

So, I've been transitioning since 2018, only got access to HRT 3 years ago, I did not have any expectations to have my voice changing without training but every time I go on youtube looking for ways to feminize my voice I just get overwhelmed and can't get myself to think of a routine to develop the muscles necessary mostly because I'm not certainly if I'm doing the exercises right so I get frustrated and give up... A lot of my transgirl friends have amazing, beautiful, unclockable voices but none of them has been able to give me proper advice and I kinda just feel like I'm less than them... where do I get the guidance needed? what are the right exercises to start developing the right muscles to achieve it? Sorry for the long rant...