I've only been on here for a couple of days, so this might seem to be coming a bit late, but I feel like I might be able to give you a little insight on top of the responses you have already gotten.
The first thing I want to say is that many of us (transgendered people) find it very hard to live for ourselves. In most ways, we are like anyone else; we want to be a part of the world around us and be seen and accepted for who we are. Unfortunately, appearance plays a huge part in how people see us, no matter who we are, and that affects the way people relate to us. No one is entirely what they appear to be, and the difference between the person we are inside and the person we appear to be can cause problems for just about anyone. No one gets to choose what they look like, and the person you really are is something you have to discover for yourself. You look at what feels right, natural and normal for you to be and to do, and you identify yourself accordingly. Gender is part of that identity, it is based more on who you are as a person than what you are as an organism. If you've ever looked at your picture or reflection, or the things you've said or done, and felt that it was not right, or that it was not quite you, you've felt a little of what a transgendered person feels every moment of his or her life. A conflict between who you are, your gender, and what you are, your sex, is something you can never really escape from.
The amazing thing about people is that they can choose how to think and act, and control how they react to their feelings, so when a transgendered person--a girl in a boy's body, for example--is growing up, she starts out thinking and acting in a manner characteristic of most girls. This starts even before she knows what the difference between male and female really is. She has no idea why people tell her to stop doing what comes naturally and act "like a boy" but to make people happy, she does what she is told, even though it is uncomfortable or feels outright wrong to her. No matter how good she gets at being a boy, that feeling of wrongness never goes away, because of course she is acting, not being. I can tell you, from experience, that you can go a long time not being yourself, if there are people you care about that expect this from you. The problem is, you cannot live your entire life trying to be something you are not. It poisons you, it tears you apart, and while you tell yourself to be strong and to "be a man" about it, you are doing more damage to yourself every day.
The consequences are worse the more successful you are in life as a man, because it all comes at the cost of denying who you really are as a person. You will be living and experiencing everything as a man, and in virtually every way, you will be as much as if not more of a man than any man around you. In a lot of ways, that is because the measure of a man is often based on what he does, not who he is. I think that's a flaw of our whole species, that we tend to value men and women for what they are, what they do, than for who they are. I think that most of societies' problems can be blamed on the fact that we only value a few people in our lives for who they are. That is what we call love. Unfortunately, our love for people can be tied up with how we perceive them as people. How you see someone plays a huge part in how you hold them in your heart and mind, and because our physical perceptions form the basis of our memories a person's physical appearance plays a huge part in how we see them.
I always knew I was a girl, but because my body was male and because I was always seen as a boy, the love my family had for me could never be for me. Because of him, they never knew me. I had to pretend to be something I was not in order for them to love me, and I did it, no matter how much it hurt, because I loved them. Unfortunately, the longer I went on denying myself, the harder it became to live for myself. I had no hopes or dreams. I had to give up everything I wanted to be and most of the things I wanted to do to be able to play the part I was trapped in. When I went off to college, and no longer had my family to perform for, I literally fell apart. I did not know how to live. I wanted to just be me, but my body would not let me. All I had to do was relax, and I would slip back to thinking, feeling and acting like a girl, but exhibiting that behavior in a man's body only made me more conscious of how wrong my body was for me.
The older I get, the more I feel like I will grow old and die without ever having lived. I gave up so much out of love for my family, but when my siblings all moved on, making new lives and starting families of their own, and when my mom got cancer and died, I realized that I was lost without them. I did not have an intimate place in their lives, and I had no life of my own. I spent my whole adult life unable to stay on my feet because the life I had was an act, a lie that no longer served a purpose. I came out to my family, and they asked me not to change myself, and yet, they all want me to pull myself together and have a happy and successful life. In the end, the cost of their love became impossible. I would have gone on doing this for them, but when they asked me to do it for me they could not understand that what they were asking for would destroy me.
All I ever wanted from my family was to be loved for who I was, no matter what I happened to be. When you father told you about his gender issues, he was asking you for the same thing.
