Don't be so hard on yourself. Some people can only create in chaos. I had to completely empty out my sewing room for new flooring to go in, then I went to the hospital to have both knees replaced. I thought I would never get my new sewing space back in order because I wanted to strip wallpaper and repaint before I started moving stuff back in. I just started setting small goals for each day based on what I could physically handle. So, you could just set aside an area each day you will get organized before you do anything else that day. If you find things in that one area that belong somewhere you haven't yet organized yet, just put it somewhere in the area it belongs and get right back to the area of the day. If something belongs in an already cleaned area, put it where it belongs. Most of all, enjoy the process.