The perils of flatsharing

So it's been four years. Four years since I started sharing my living space with total strangers. I mean, not that I lived on my own before. I did have to share a house with my family till I was 18 - I was told that's 'normal'.
So anyway, after leaving the constraints of family bliss and arguing behind I was kinda looking forward to the freedom of living alone i.e. NOT with my parents.

That would all be well and nice if it wasn't for one unusual characteristic of mine that not many seem to understand or share. I LIKE THINGS TIDY!!!!!!
So I tried.
I tried putting up a cleaning schedule that of course nobody ever follows.
I tried leaving the dirt in the hope they'd start feeling uncomfortable and remove it themselves (Of course, I was the only one who felt uncomfortable before they even noticed the difference - so I cleaned.)
I tried getting up early and going to bed late so I could clean after them at night and then again before they got up in the morning. Needless to say that didn't work either 'cos there are like 10 hours in between when I'm not at home and that's a long time at one's disposal if the mission is 'chaos'.
Okay, so maybe they are not that bad.
Maybe it's just the fact that despite my upbringing with siblings I have one fundamental flaw - I don't share well!
In fact I don't share at all.
I mean back in the days I wouldn't even let my sister read my old magazines that I knew inside out because, well... she might leave a finger print you know.
Seriously, after all I've been in that flat the longest does that not entitle me to the prerogative to determine who can use what and when?
It's not like I wouldn't allow them to enter the kitchen and maybe use the fridge, but seriously - do they have to cook?
And the shower - so I can't forbid them to shower but can I at least get them to clean the tiles after every use?
No? Okay then it's clear what I have to do.
Earn loads of money and get my own place where I'll never cook, have a cloth and all purpose cleaner next to anything that could possibly cause dirt and make anyone who wants to visit take off their shoes and wash their hands before they touch anything.

Sounds like a plan!