YOU GET IN THAT ROOM AND START CLEANING. NOW!!! And I'd better not have to tell you again. LOL! Do I remind you of your mom. Well, whatever it takes. Once you get started, you will feel so good you won't be able to stop.
And, IF I HAVE TO TELL YOU AGAIN, I'M GOING TO GROUND YOU TO YOUR SEWING ROOM. LOL!! Oh you wish.
Keep saying, I can do it. I can do it. I can do it. I can do it. Just keep telling yourself that... then DO IT!!!!!!!!! (I was shouting, could you hear me.)

Start by organising your fabric. Seeing it looking beautiful will n spire you to do the rest.
Just a tip from when I do mine leave the machines unplugged and not set up till last. I made that mistake and as soon as machine plugged on started sewing . Never finished the room that time.

Go one get going. Decide on a treat for when one small patch done. Piece of cake (large) .

Put on some peppy music that you enjoy. Often times helps get me charged and going. Pick something that has the greatest impact to start so you see progress, rather than a little section that requires time consuming detail. Good luck. I just reorganized my walk-in closet in my bedroom. I don't have a craft room yet, so my scrap booking, sewing, and a mass of photos are stored in my walk in closet. Good thing (I think) that I don't have a ton of clothes LOL

I give myself treats along the way. Like when I have the floor picked up, I can have a candy bar, the rullers out away mean I can take a break. Ususally as I start seeing the progress, I can't stop for treats! AND I feel SO GOOD when it is all pretty and clean! GO for it! Even a little cleaning is better than none :)

I'm one of these global random thinkers and that can be hard on my quilting space when I'm in one of my "I wonder if" moods. I keep my stuff in check by putting away 25(50) items the first time each day I hit my sewing space. Keeps the clutter down. Only takes a few minutes each day - kinda like whizzing thru the living room each day while I wait for the deep cleaning bug to hit.

I keep telling myself, it has to be at least in order for me to be motivated. Can't stand clutter! If it's dusty, I get the Swiffer out and give it atleast a lick and a promise to do better the next time. Then comes Thursday when the estate sales start through Sat. and start all over again. I have a laundry basket that I put estate things in. it's going to the laundry anyway. I try to keep certain items together like all the batting in one area. It's a start.

I would start with the big things first like putting the batting in on area. If you have a regular size ironing board use it like you're folding clothes. Don't worry about the folding boards yet just fold. getting the material in their places is a major do. If you're going to have the tv on it shouldn't be in another room. If that's the case then turn on the radio to music that is upbeat nothing that is relaxing. It'll make you want to take a nap. Just some extra tips. Now I'm just going to go shut the door on my sewing room. LOL!

Baby steps:)

Peppy music, bright lights, putting the largest things away first --- working only on one side of the room.

Decisions: keep, not sure, and release.

When you want to "release" something from your collection, put it in a designated box. Handle it once, then move the box to the car for donation delivery, designated spot for trading with friends, etc. You will - I promise - get in the habit of putting the release items away as you see and/or touch them!

Dream big, but don't feel sorry for yourself. Think of why you want something for your sewing room. You just might have a bright idea and discover a new use for something you already own. (I just released some tablecloths and moved the table runners to the linen closet. That freed up the large bottom space in a chest of drawers. Now, I have all of the computer accessory cords, SD cards, CD blanks, DVD blanks, and camera equipment in one easily accessible spot. I'm so proud of myself that I almost broke my arm patting myself on the back.)

Good luck :)

If you havae anything that is waste like papers, bags, boxes, get rid of that stuff first. That might make quite a dent in it. I feel for you as I have to be in the mood to organize so do it when the mood hits you or if it never happens, you will just have to grit your teeth and do some of it.