I stand unsure if organizational and cleanly habits are inherited, learned or innate, but I got it. Reordering things from furniture to my desk top at home and going through to find out what I need and what I don't has always been my stress reliever. I like to know what I have and where it is. It saves me time, energy and money in the long-run. But you have to stay on top of it. You have to:
Make the time to sort and sift
Life is ever chaotic and busy, we all know too well. Still, be aggressive and strategic with spare time that comes up in order to go chisel a bit at a time.
Look to others for some help
You don't have to take on every project by yourself. Talk with friends and family around you that could see where you're at and where you would like to be as to try and assist some of the busy work of reordering, sorting through and even selling items. Express your concerns, where it is that needs work and your end goal.
Prioritize your objectives
Trust the process. Seriously, there can be a method to the madness. You can know your goals and where you would like to end up, but the means in which you get there will make or break the goal. You have to section it out, do a little at a time, and not push to do everything at once. Find a section that needs done, start there and eventually the work will be well underway.
Keep your attachment in check
Stuff is just stuff. People worry about whether or not they will need something in the future or not. In reality they will hold onto it forever and never end up using it. On the other hand, sentimental value is a factor that has a lot to do with why things pile up. You still have to be strategic with the "family fortunes" as to not have the unnecessary trinkets stacking themselves up.
Keep everything else tidy
It can become even more of a daunting project to organize things when the rest of the house is a mess. Save yourself more stress and strive to keep most other things tidy so that when you do begin to chip away at the bigger projects, they will not be as exhaustive.
Show stewardship
Mindset is key, and when the things of life start to crowd around you is when you need to start prioritizing. Being a good steward of your stuff starts with discipline and self control. Check the impulse before buying habits run ramped and the clutter continues. Be consistent with goal setting and accomplishing objectives. These will ensure that you will enjoy what you have and know what you have.