Questioning my gender has somehow made me transphobic in the more literal sense

I've been questioning for roughly half a year now, and haven't done much IRL about it besides tell some family (which went... ehh) and look around for therapists (which I now have to redo since I've since switched insurance).

I also have a :storefront: alt subbed to a bunch of trans subs that I go into occasionally. I end up browsing very analytically, looking at people's features. I really like seeing pictures of good-looking and/or passing trans girls (side note: being a "girl" sounds cool but being a "woman" sounds terrifying. Does that mean anything?) because it makes me feel like I could plausibly achieve something like similar, like I'm not hopeless. When I see trans girls who don't pass, though, it just makes me feel awful, almost disgusted. I can't help but imagine myself failing to transition and being stuck in some awkward in-between. I never had this reaction before I started actively questioning.

Logically I know that's silly—every transition is different, looks aren't everything, and so forth, but knowing that can't change my gut reaction, and having that reaction in the first place makes me feel like an asshole, so I'm doubly screwed up when it happens.

I know this is something I'll probably have to work out in therapy but wondering if anyone's gone through something similar?