AHHHHH SUGAR - you are NOT alone! For many m any years i sewing, make quilts etc in a HALLWAY with machine etc in a bi-fold door closet! YUP sat in the hall to get at it.
One thing a friend did I thought was about the b est idea ever - was to totally empty her sewing room - period. Then begin to slect what pieces of furniture she could use from the stuff she tool ouyt, and continued from there. I do remember she swapped a piece from the sewing room for someting in a bedroom .. thinking it was a dresser she wanted. Becasue she always used a dresser as her cutting table, with mats of course.
THERE IS HOPE. Take courage, be brave and hurl yourself into the fray! Start heaving stuff into the hall etc immiately - no thought, just throw it out of the room!
Of course dinner will have to be oroder out pizza!
Good luck, let us know what happens.
Julie