Feeling blocked from sexuality

I'm in a bit of an impasse with my sex life and I'm reaching out to see if any of you gals have been through something similar or have any advice on how to get unstuck.

I'm not getting any, like at all. I haven't had sex in almost a year. If I want casual sex, I know where and how to get it (hello Grindr). Hookups are no longer fun or exciting, I know there's no fulfillment there in the long term. You can't have candy for dinner. Plus with hookups I always feel like I have to be in character or something when I do, it's never "me" hooking up if that makes sense.

I'm single and running into a brick wall when dating so even flings aren't an option. And of course no significant other to have sex with so nothing there.

Which leaves me with me. But I can't mastrubate. Every time I do feel frisky and start to go about it, it just never goes anywhere if that makes sense. The car engine won't turn over, smoke never catches into fire, the pot never boils - pick your analogy. It's like I'm desiring to have desire more than anything else. I don't have a fantasy that does the trick, videos, audios, none of it's working.

I'm BDSM inclined and a sub and part of what I'm wondering is if I'm submissive because it allows me to put the burden of accessing my sexuality onto someone else giving me that permission. But I don't have a dom/dome so that feeds back into the hookup problem which doesn't go anywhere.

Part of why I transitioned is I wanted to feel sexually fulfilled and able to fully explore my desires. But now that I've transitioned (8years hrt, full social transition) I don't feel like I'm making the most of it. Hell, I was having more sex when I was in the closet. There's some pretty significant genital dysphoria, sure. But I've been able to get there on my own by myself and with partners before with that being the case.

Basically, how do I get out of this rut I'm in? Has anybody else been able to reestablish a sexual relationship with themselves after it's broken down? Halp, pls.