Oh my god, man. I truly am sorry, but this topic in a strange way made me happy because I thought I was the only one.
What I do, since I'll die a little on the inside if I don't take a shower when I wake up, is that I just don't look down. The only problem with that is when my arm hits one of my boobs or something then I wonder what is in my way. Lol. No joke.
Anyway, what I suggest, uh...try showering in the dark?
And don't take a bath. Bath = dysphoria. Well, at least it does for me. I'll start crying if I take a bath, even if I like taking baths, I can't stand the fact that I have to see my body when I take a bath. Basically, what I'm saying is that baths are worse than showers when it comes to dysphoria in my experience.
In all honesty, I suggest showering in the dark. This only works if you're not afraid of the dark and if you're not half-asleep because then you might fall asleep. It's happened.
You could also try just pretending like it's somebody else's body. I don't know how well that would work for you, but it sometimes works for me. Sometimes.
Otherwise, I just take really quick showers because I honestly just want to get it over with. I hate being completely naked with my female body.
Or, as somebody else suggested, you could try showering in your binder. Don't know how well that would work since I currently use ace bandage and not a binder, but that's something you could try.
Edit:// By the way, your orange hair is very orange. I like it. (: Well...at least I think it's orange, I'm partially color blind.