too much stuff!

I'm going through all of our closets and throwing away bagful after bagful of "stuff" as we're getting ready to put our house up for sale in the next several weeks. This "stuff" has generally been sitting in closets for most of the last 2 years. Some of the stuff has made a Very Important Cameo during its residence in our home, and then gone back to being unused and neglected. I'm throwing away all these things (and recycling, and gifting and donating) and it is incredibly freeing. My mom, like oh so many other people in this world, is a hoarder. Seeing her stacks brings fiery anxiety right up to the tops of my eyeballs. I swore I would never have piles of unused "stuff"sitting around, no matter how important those things were to me at one time. And the thing is - I didn't think I had that many piles! Ha ha...joke's on me. If it wasn't making me insane having so much garbage on the floor of my bedroom, I'd take a picture and post it...but it's got to get out of the house before I need to start my happy pills again. Question of the year: will I be able to stick to my "just because we're moving into a bigger house does not mean we need to fill every room and closet" resolve - even 5 years after we've lived there? XXXXXX (that's all my fingers crossed really tight!)