As someone who literally didn't know until I was an adult, dysphoria has been crushing you for your entire life. It will crush you every day that you live unless you transition. Every day before I transitioned was a day I wasn't alive.
Yesterday I got in fight with my family because they still didn't understand what being a woman means to me. I'm not brave for transitioning. It took more courage to repress yourself for over three decades, even though you knew what you wanted. As soon as I knew I wanted to be a girl, I didn't make it a year before I was forced to transition or die.
I commend you for holding out for the sake of others, but you have the option of living for yourself. Nothing feels better than loving yourself, regardless of what your gender is. It's like seeing after being blind for your entire life. There will be no more going back because you'll never want to go back.