I think Zozee is spot on!
One thing that has helped me in recent years is giving myself permission to get rid of things I'm not likely to use. It might have been a really good deal at the time - or not - but if it's just in the way, it isn't worth whatever the cost was. Anything in good condition is donated appropriately (VoA, local charity, guild, etc.) and anything not, tossed or recycled.
This includes quilt projects that aren't done... If I find I didn't like the technique, fabric or whatever and have tossed it aside, I'm not going to like it more as time goes on. My time is a precious commodity - I work full time, so don't have time to do things I don't enjoy. There are groups, including here on the board, I think, that will take partially finished projects and finish or repurpose them.