I have used certain files on this website to explore the idea of baby-like wetting (being really unable to hold your pee) - and submissive wetting, i.e. wetting when being dominated and controlled by someone else. These are of course linked, as the file to make you wet yourself can be thought of as the control, or it can be someone making you listen to it as part of a femdom or dom/sub relationship.
The ones that I felt worked most for me were Sarnoga's Accustomed to Wetting and EMG's TrainBabyBladder. I felt I needed something a bit deeper that would stay with me for longer and deepen my diaper acceptance. We are talking about making a transition from being a "play wetter" to something deeper and longer lasting, in this case to become a sissy panty and diaper wetter.
I have also explored files from other pee-play file writers on this and other websites, mostly total rubbish, but some really effective and some very erotic too. One by Mindmaster I have tried which was quite good for me, (but I dont want the full messing content) and files by Charlotte Gray are some of the best, and Ember Larimar. But I still needed something more effective, and something with a sissy-girl feminisation training slant.
So I experimented writing some scripts to run through a text-to-speech app, to generate some files that would blur this boundary.
For me if you listen often enough to a suitable training files or file set (and wear diapers as much as possible) that boundary can become quite indistinct. That area is quite nice as it's not 100% bladder control loss, but can sometimes lower your ability to hold your pee a lot. That may or may not return if you stop using the MP3s and/or wearing the diapers.
People should think carefully before they go down this road. Pee play can be a lot of fun, and also highly addictive. If you become a full time diaper user (for pee) it can cost quite a bit too. It will also limit your ability to do certain things. And it may start as a game, but over time real physical effects will come about, like your bladder shrinking and getting uncontrollable pee urges.