I was on a forum for trans people about 15+ years ago and people gave this advice all the time, lol. "Learn self-defense." And "Carry mace. Carry a gun. Never go anywhere by yourself." (This was all before trans issues really hit mainstream.)
Problem is, I have vertigo, so I lose my balance very easily. Just turning my head too fast can do it. I'm completely useless in a fight. Even walking can be a bit of a challenge some days. I can't drive, either, for the same reason; because I don't want to lose my balance and drive into oncoming traffic.
So, the problem for me is that I'm visibly gender nonconforming (I don't pass, ie. I'm a "man in a dress"), which makes me a visible target; I can't defend myself physically because of my vertigo; I have to walk everywhere (I'd be much safer driving); and I have no friends so I have to go everywhere alone. My therapist suggested getting an "emotional support animal" (ie. a dog) but I can't afford to look after one.
This makes me feel extremely vulnerable whenever I leave the house. Obv, most people have no intention of hurting me, but it only takes one person to **** up your life. And as my OCD is about violence, it makes being anywhere there are other people extremely nerve-racking for me.
The two easiest ways for me to solve this problem are: 1. passing (which is impossible without advanced alien technology) and 2. getting a friend IRL so I don't have to do everything by myself. But (aside from one nonconforming person I saw a few months ago, who may have not even been trans) I've never even seen another non-passing trans woman in my entire life, and they're about the only people who might be okay with being seen in public with me (depends on whether or not they think they're passing themselves, haha). Imagine being the only one of your kind (a visible--and generally disliked--minority) in your community. It's like everything in my life has conspired to make my existence as uncomfortable as possible.