I tend to work with what I have rather than buy new expensive storage. It can be very overwhelming. My best idea is to allot an hour to work on it. I often set a timer. I have to go in and do one thing for an hour. I doesn't matter if it's refolding fabric and placing with like colors, taking patterns and putting them in a box on a shelf (even if it doesn't end up being their permanent home). I just have to start getting things together. You don't have to do it all in one day. Just an hour here and there. You'll be surprised how much you can get done that way.
I"ve also found that sometimes when I do a bit here and there, I end up getting enthused and working past the hour.