YMMV, but it seems to me that this journey is about being yourself. If your real self needs to express traditional femininity by "passing" then that is who you are. If, along the way, you find that that is a stricter standard than you need, then just being the way you end up as is who you really are. You won't necessarily know where on that path you will end up until you try either way.
Explore your options with curiosity. If you aim for passing, along the way you will go through a stage of not quite passing. Pay attention to how that feels. If it feels good, that's great. If it feels like you need more, that's fine, too.
Explore, too, what you mean by "passing". Does it mean that not even the most suspicious person can tell that you are trans? Does it mean that most people can't tell? Does it mean that you always get gendered correctly? Does it mean that you usually get gendered correctly? There are no wrong answers. You get to define your goals.
I am finding that just being me, the way I am today, is fantastic. I get gendered correctly in most situations. I haven't gotten any feedback about whether I pass or not, and I have not inquired. I am finding that it really isn't that important to me.