Honestly? I feel the same as far as 'performance anxiety' goes. I'm in a generally stable marriage with a cis gendered straight man, and vaginal penetration has become something scary after a few painful tries. I don't think the pain had anything to do with transitioning, since it's been something I've dealt with since I became sexually active. It was just a perfect storm of fear/anxiety, pain, and hatred of the idea of being penetrated in a vagina, which men should not have that has turned me off to it.
Now we're still sexually active, but it's different. I'm penetrating him, and I feel incredibly awkward and humiliated by the idea of strapping it on and doing my thing, even if I enjoy the act once I can get past the negative stuff. I've found that blind folding him helps me, because I know he can't see me at all. Other than that it's just something I have to push through, even if it's emotionally painful. I'm unhappy to report that we spend a lot of time making out, getting frustrated, and then separating to take care of ourselves solo.