Almost happened to me also
It wasn't the usual- can't do this too risky type of purge but I had gotten dressed- looked at myself in the mirror and said "blech"- too fat, too ugly, too mannish- the whole thing. I was convinced my SO was no longer accepting or wouldn't be once she caught sight of the horror that was me.
I just took off the gear and relaxed. I haven't purged, just stop dressing up fully until the self-hate subsides by itself or I do something to actively stop it (make over or whatever).
The advice to never purge more than half your wardrobe is a good one. Another might be to buy a new wig or get a makeover aka give yourself some self-reinforcement when the pressures- internal or external- feel like they are becoming overwhelming.
Let's the next purge any of us take will be just getting ride of the ugly or out of fashion parts of our wardrobe to replace them with something better.
Religion is a tough one for me too.
I've had issues with the Christian viewpoint in cding as well but then I looked at the collective Christian church (both Catholic and Protestant) and realized the system has issues of its own to contend with and mine are minor in comparison. I have since taken up the study of Paganism and Goddess worship and came across quite a few epiphanys as a result. There is more to this religion thing than what is being presented. In any case purging is bad like all the other girls have been saying and truth be told it can get crazy expensive. My heart goes out to you.