Aloha Cheryl-Anne,
Foxdream has some good insights from her experience. What I'd recommend is do the space clearing of the room the night before you are going to declutter it. Allowing the energetic to give support to what you are doing to do can make a big difference. Depending on the sector the room is in, opening windows, turning on lights, and bringing in some refreshing music while working on it can add to the clearing/cleansing.
Take it a step at a time and celebrate each step.
Much love,
Shawn