This week, you will wet your diaper in front of a mirror. If you want, you can wear pants instead. But... if you're curious about diapers and haven't worn them yet, now is a sign that you should start.
Put on the diaper, and when you know you really have to go, stand in front of the mirror. Wear only the diaper and a shirt (if you want). But don't wear pants over the diaper. Watch yourself wetting the diaper. See what you look like standing up, wearing a diaper, wetting it completely. See this image, accept it, know that it's you.
You are standing here and wetting yourself. Then, don't change out of it right away. Continue doing whatever you were doing for the next hour or so. Every few minutes pass in front of the mirror again and see yourself. See how you're walking around in your wet diaper. See how normal it looks.
Maybe it's embarrassing, but it also feels somehow normal. Maybe it's not even embarrassing, maybe it's purely comforting.
Keep walking past the mirror, just to see yourself in a wet diaper, doing everyday tasks. Then, when you're ready, you can change yourself into a new, fresh diaper, and put on clothes over the diaper.