Sounds like working in a prison.lol
Sounds like the whisskit with synthetic is about all you can do in your case. Sounds like you've got it pretty well planned out.
For me I would just quit the job and go find a better place to work. I've done that numerous times but I've always been debt free so its easy for me to do.
You've done a lot of research and thats good. Be sure and read up on the proper protocols that employers are required to use so that if they violate them you have an arguement to fight back with. They can not fire you if you can't pee after 3 hours unless you've signed a contract that stipulates that exact thing. If you can't pee after 3 hours they will just reschedule you. Use to do that occasionally years ago before I decided to learn how to play the game better.