If you want to simplify your life and live in a way that is efficient then you do have a couple of choices.
Rather than give you a hard time for your humble abode's cluster much and cluttered mess, it is more productive to dump the blame games, name calling and personal attacks, instead let us look forward to the future you.
Now, if you live alone and you have been living in a muddy messy pig sty all your life there is probably nothing I can do to save you, and well, you probably do not want to be saved anyway.
I wish you all the best and hope you find someone equally yoked to enjoy your garbage dump hell.
The reality about de-cluttering and the basic principle behind organizing is that when multiple people live together things need to be strategically located so everyone can find what they need without a lot of inefficiency and search time.
If you find yourself wanting to change and it has to be your choice, because no one is going to be able to talk any adult into cleaning up their room, then you have a few options.
You can simplify your life by becoming a minimalist.
You know like a Mountainous Monk who has discharged his Worldly possessions in order to find enlightenment probably because it's there somewhere, but he just cannot find it under all the junk.
If becoming a minimalist does not turn you on, then you need to straighten up your life and get organized.
For that you have a couple more choices.
You can Do-it-Yourself or you can hire an organizing professional to assist you; this too is completely up to you.
So, consider this and make your decision, but please do not bury under all that mess.