My whole decluttering journey started 3 years ago when I realized we would soon have to move DS2 from our room to his own room (he was 8 months old) and that DD wanted to move to her own room and not share with DS1 any more. I had 4 bedrooms and 2 were full of clutter. FULL! I had 5 years of boy stuff and 3 years of girl stuff. I started by doing 10 minutes a day guaranteed. I was amazed at how much I got done in 10 minutes. So, I know how it goes when you need that space!
I've sorted through some things today. Nothing is gone, except trash. But, I have a bin going of things to donate and will do that tomorrow, probably.