Hi Hesse, welcome
What's a 62yo hetro male doing replying to you? Well the principle of uniqueness applies to everyone in the world. Think about the categories we can fall into- LBGTIQ (that's six to start with), hetro, A sexual, bipolar, depression, BPD, anxious, extrovert/introvert...you get the picture eh. Not one of us is exactly the same even twins.
I read a comment from a well known female singer/songwriter when she gave away a lot of money to her new girlfriend so she was declaring a new relationship and it surprised the media. "I believe sexuality is a fluid thing, if I want to be with a guy I can, a girl I can...its fluid". It was a good attitude. If people run with that attitude with the view- "its my life and my body and my feelings,...I'll go my own way through life as long as I'm not hurting people.
Now when people get hurt by your newly declared sexuality you are not hurting them, they are hurting themselves because they exercise their rights to their views on what they expect of you. It's their problem- so they should deal with it. Would you interfere in their choices? I don't think so.
This freedom is amongst our greatest assets of our time, the freedom to be what you feel you want to be, what ever that is. By worrying about it and holding off on your true feeling towards others or a simple matter of developing your feelings about your desires and sexuality is to rob yourself of ...YOU.
To help find YOU, it is good if you blend into the world by which you seek. the gay/transgender world is out there, full of understanding and acceptance, fun and non judgements.
The "coming out of the closet" step is a hard one for anyone. Again, if your parents are shock its understandable. If they preach to you about their own expectations...see above!! But hopefully they will take some time adjusting but still love you. Give and take is essential. A chat with your GP is also a good move. You can chat about your parents and hormone therapy etc.
I hope you feel better. Google this one for a message in that thread
topic: acceptance- the frog and the scorpion- beyondblue