Oh golly........ The quote you took from the youtube vid fits it very well and is almost exactly what I used to feel like.
I used to "Roleplay" a lot on computer games with communities who share the interest. It is basically acting without a script, improv or what ever and it's fantastic.
Made a female character once for ->-bleeped-<-s and giggles and I enjoyed it way too much, and eventually over time it became harder and hard to play a male character well or come up with a good back story and personality for that male character. And easier to make a fantastic female character with a background everyone adores and a personality everyone adores.
Re wording the quote you used. I used to feel "The dual life gets exhausting. I can't decide if I'm a boy or a girl... During roleplay, it's different."
I used to get a lot of praise about my female characters and people felt I played them out fantastically. Every single bit of praise was beyond fantastic to me, and what I was getting praised for came very natural to me, it was a female body (Avatar) with my personality. People felt it was very feminine, they wouldn't guess I was actually a guy unless I told them because they found it so convincing and people just always loved both the character and admired the skill they felt I had to create her.
In real life I get almost the opposite. My personality matched with my gender - male seems to confuse people. I've never really been bullied and always had a good group of friends but I get the same comments, questions and so on from strangers, and not just a few times over. But like 80% of strangers I meet seem to make the comments or questions about how they get gay vibes off me even though I'm not gay, the way I stand, walk. This or that is womanly bla bla bla bla. If they aren't stubborn, old fashioned knob heads as soon as they get to know me they get used to it and we get on well.
But! Even when I do get praise in real life for being my self, it's never matched the level I used to feel when I received praise about my characters in the role-play thing.
It's very hard to explain to some one who doesn't act or role-play, but it's much more than a game or a computer screen or what ever. You really put your heart and soul into this person and become them and follow them along on a amazing journey. It really did feel like two separate worlds and lives. One the role-play, the other my real life.
In the last year or so the more I came to terms with this trans thing, and accepted my self instead of felt shameful and the further I ventured down the path like seeing a doctor about feeling this way. The less I've wanted to role-play. I didn't notice I was trans BECAUSE of the role-play but they are absolutely linked at least in a minor way. I really think I used to enjoy it so much because there was no other place I could pretend to be female but there I could do it easily...... And I enjoyed it. And the closer to starting my transition I'm getting the less I want to role-play so yea, I just think thats interesting.
But in short! Cause thats all way too long. The "Stage" (role-play) felt right, felt good, felt natural But most of all I felt whole!. Real life was similar but there was always something missing.