You know, I can see that happening with me. It is almost as if I am swinging to the other end of the spectrum.
I, too, love reading about it. My contention is that any education is not in vain.
I did have OCD at one point (not real bad) but I used logic to overcome it.
Perfectionist tendencies may be what you are experiencing. I like to do things perfectly or if I can't, I have tended to let it go.
I notice myself aligning objects, cleaning up as I am eating, looking for stuff to toss.
Now I am nowhere near having my stuff under control. I am working on it. I actually love my cool stuff. I enjoy collecting. But I am trying to control it rather than have it control me.
I'd be very pleased with a happy medium.
In no way am I interested in minimalism although I think there is a lot to be learned from it. It is just not for me- at all.
I had very little stuff with me a few years ago and that certainly did not make my life easier.
What I am basically aiming for is getting organized. I know I can do that as I was always super-organized at work while managing 42 eight year olds.
You are NOT alone. Try not to worry about it. I imagine it will get easier.