So last year you failed to control your urges and you figure being diapered all year did not help you learn how to control your urges.
If you can not be a responsible adult and control your urges for a simple month maybe your wife needs to demonstrate what being responsible is.
For starters your should be required to wear a littlekeepers onesies at all times.
https://littlekeepersleeper.com/
This will keep your hands out of the places it should not be. Having the zipper in the back makes it impossible for you to undress but easier for her to get you in and out of the onesies. It can be worn under your normal clothing so there is no reason not to be in them 7/24 just like your diapers. This is how your wife can show you that it is possible to go for a month without giving in to your basic need for a climax.
One problem with the onesie is monitoring the state of your diaper could be problematic. If your wife just attached a smartdiaper sensor to your diaper this issue would be resolved.
https://www.amazon.com/Wearable-Humidity-Sensor-Instant-Prevent/dp/B01N8RD32C#:~:text=Meet%20SmartDiaper!,diaper%20after%20they%20wet%20themselves.
with this your wife will know if you are in need of a change or not. You will have no say or input in the place and time of a diaper change. This will allow your wife to model how a responsible adult manages a basic body function.
Also as a added bonus the app will notify your wife if you wander off and get to far away from her phone.
If wandering becomes a issue she can always make you wear a walking harness
https://www.childharness.ca/specialneedsharness.html
If she gets all the accessories she will know the harness will stay on and where you will be at all times.
You want to get up and leave the kitchen table, Nope not happening until she say so.
You want to wander off, The leash will put a stop to that.
Want to get up in the middle of the night for a drink of water, Oops you can't sit up, besides that is what a baby bottle is for.
Knowing where you are will make the diaper changes a much simpler process.
People who can be responsible can have lots of freedom, The folks that can not be responsible need to be taken care of until they learn how to be responsible. the harness will just be a constant reminder that you have not learned how to be a responsible adult.
With a well defined lesson plan in place in case you fail your no nut november challenge I suspect you moto for november will be
"failure is not an option"