Q) Is it O.K. to get rid of more than 5 bits of clutter a day?
A) You can do whatever suits you best. 5 is a nice easy number which will guarantee you don’t get overwhelmed or carried away. Some days you might find more clutter some days less. Any movement in the right direction is going to get you somewhere. The reason I’m against huge overhauls is that it is so easy to make big mistakes. I wrote about it here https://less-stuff.co.uk/decluttering-purge-doesnt-work/