@Buffy01, do you have a therapist to work on your confidence with? That can definitely be worked on and improved. It takes time, but it's something that can be changed and is within our control.

I try to look at what is in my control to work on and change, and what is completely out of my hands. I have to work on my confidence every day of my life - especially my confidence level at work. I am constantly doubting myself and have imposter syndrome, whereby I feel like I am putting on a good act of knowing more than I actually do - so my confidence suffers.

It takes time and effort to work on oneself in this way, but I think it's well worth the effort in the end.