Teddy, I am sorry your parents are not taking it well.
I started my transition a year after my Mom died. My Dad died 27 years ago. There is a story behind them, me getting married and wanting to please them. If I could go back it would be very different. We can not go back or change the past but we can look to the future and do what makes us happy. You need to live your life and not live your life for someone else.