First of all, just concentrate on feeling better and don't worry about the room.
If mom is a neat person, ask her to help you when she comes this weekend. I'd suggest asking a friend as well--someone who can do the stooping and bending (doesn't sound like THAT would be fun for YOU right now).
I'd see what I could do without buying ANYTHING first. Most of us have what we need if we simply repurpose it. For example, TV trays can become tables, bricks and boards can become shelving, etc.
And I too have learned to appreciate what I have and treat my things as though they are appreciated. So organizing my sewing room came with appreciation and went easier. Before that, my craft room would have made yours look like The Hilton!
I used big plastic bags that bedspreads had come in (before I started quilting again) to store and label "Fat quarters and strips," "African prints," "Asian prints," etc.
But above all, GIVE YOURSELF A BREAK! You're doing just fine and it's YOUR room! I always say if things aren't perfect at my house when people come over and they don't like it, they can always go home where things ARE perfect.