Well its only displayed by some media that people knew from early on (this is changing now).
People are individuals, with individual histories.
You could have a look here for a few thoughts that might help:
https://www.susans.org/forums/index.php/topic,185096.msg1646042.html#msg1646042Its for mtf people so a few things are the other way around...
and maybe here again... there are some contacts in there...
https://www.susans.org/forums/index.php?topic=186029.5you might play around a bit with hair and clothing styles... it can be fun... second hand shops could be a source... unisex or boys trousers, sweaters one or two sizes bigger...
and see how it makes you feel... I'd say go with a feeling of joy....
I'd say take the time you need...
its a process, but many have been there before and succeeded, and people here will try to support you.
And you might keep asking questions, alone writing might help getting a better view...
Concerning asthma, you might look up the buteyko method and talk it through with your doctor. Its by a doctor who found that many people with asthma cannot inhale because their respiratory system does not get air out sufficiently. Its a breathing method trying to methodically exhale, then inhale.
hugs