I have another experience to share regarding the acceptance of parents.
I'll tell you how I told my parents that I'm going to transition.
I broke. I self admitted myself into a mental hospital for a period of two weeks due to an extreme amount of GID related stress. I had my wife visit me all she could, told her to keep the baby home for the most part, and took the doctor's advice and medicine. I made some incredible friends, but I lost contact as they continued to disassociate due to their worsening (and unquestionably more serious) mental conditions.
I called both of my parents from the hospital and told them over the phone (essentially the same for both) "Do you remember when I was a kid, and we had that family meeting? You said, It's okay if you want to wear girl's clothes, we just want you to be happy? Do you ever wonder why I didn't take you up on that? It was because the clothes really didn't matter. It's because I didn't have the capacity to understand, and I was afraid, that I was transsexual. I'm at the mental hospital now, and I need to have a family meeting with you all tomorrow."
At the meeting the next day I told everyone: my wife, my parents, that I was going to transition. I waited two more years to get to a therapist and go about it in earnest.
My father, who I have mentioned before, is an absolute mess over this. I have addressed him an innumerable number of times on the issue and he has told me: As long as you're all happy, you have to be whatever you need to be. Unfortunately, I know that he feels a great deal of stress, and I am trying to ease Emma into his life as delicately as possible. Still, he likes to be updated.
My mother is an enormous help, just last night she looked me straight in the face and told me to keep going. She knows that I'm a danger to myself as a man. She recognizes the incredible destructive lie I have become adept at living, it's as though she can feel disaster before I get to it, and the last week or so has put her on edge.
If you worry about your parents and their reaction, understand that (among other things) they fear your condition because it pains them to see you in pain. I also understand this, as a parent. Help them to understand that this is the better path and they may help you maintain it down the road.
I hope somehow that some of that helps. Coming out is complicated.
Emma