My experience is quite different from most, and is similar to PaulaQ's.
Like others, I was quite fond of explicit images and self-satisfaction. That desire diminished considerably when I began this journey thinking that I was a crossdresser. It vanished entirely when I accepted my gender dysphoria for what it is and embraced my transgender femininity.
Now, they are just clothes. Feminine clothing gets me no more aroused than masculine clothing.
While I do enjoy dressing up and looking good, it's not for sexual arousal.
Best Wishes
MsVal