For me what triggers intense dysphoria is thinking about it or thinking period. I have been well of this since I was five. I know that seems absurd, how can a 5 year old be aware of something as complicates as this but I was. I also knew society at large would shun me. I'm not sure if that is true anymore. Your story is a little atypical in that you say you didn't know until you were 24 when most people say they knew earlier, way before puberty. I'm not discounting you at all for figuring it out so late, so don't think that. But it sounds like you knew something was up because you had that gene sequence took. I didn't even know that was available commercially. Of course, I didn't realize I could transition until last year. I live in a major, liberal east coast city with plenty of TS resources so I should have known. I could have done something in 2007. I had the money. Now it's gone.
It isn't the time so much that pisses me off as i only look marginally older but the money. I also could have saved myself some pain. Hell I even had someone I could have lived with who would have been 100 percent supportive in every way. Know she won't talk to me for various reasons, mainly time and distance. I ask myself this. All other things being equal, if I could easily transition and my family would be A okay with it and I wouldn't lose work then would I do it? Without hesitation, every time my answer is yes. There is no doubt, if there were no obstacles and I could get SRS I would do it. And if you would have told me that at any other point in my life, I feel certain my answer would be yes as well. I think that is the best test for anyone on the fence. If you have doubts, maybe you should wait. Just my two cents, so before taking my advice consider that it did come from me. You'd do well to do the opposite lol