iKate,
You may be able to overcome the fear of getting clocked in the near future. Enjoying your gender expression does matter. It does not so much matter whether you pass or not, or whether you get clocked or not.
Yesterday morning, I hiked to a small mountain here with my wife and little daughter.
All strange people definitely recognized me as a woman.
Then my daughter shouts and shouts "Dad! Dad!" (in Korean).
My wife also shouts a similar pronoun denoting a dad.
There were many hikers around us. Also, a team of people were preparing for shooting a film there.
Of course, it is embarrassing to me, but what can I do? Should I ask my family not to call me dad?
Probably not.
Yesterday, me. To the left is my daughter.

barbie~~