Priority

Anyone who reads my stuff knows I am a great believer in making a start.  The way I do it is to find what I have and go for it.  It only becomes obvious more is required as I go along.
When we made the artificial plant cover behind the bbq, I found what wood we had and only then knew I needed joiners, screws and wire.  We had most of what was needed and got the rest.  Only then could I finish the job and hang the screen up.
It was the same with stamps.  Only starting told me I needed more sleeves.  Sorting was profitable and I got them to a stage where I could go no further without the sleeves.  I purchased them and can go on.
They say, and I have found the hardest part of any task is usually getting started.  I so often do anything but make a start.  And having done that I try not to get distracted (not always successfully).  It is amazing how many times I can start on one thing and several hours later be found doing something totally unrelated that was not required to do at that point.  There may be a small sense of a win, but what I set out to do still looms large.
When it comes to public stuff, I always start with what I need to do first.  Even this morning I am going out later and have some things I will be doing.  I ensure I am ready for that first.  My thinking is if I do not get to the other things I have at least done all required for what is on the horizon publicly.
I find the stress of vagueness is uncomfortable and unnecessary.  For me lists help keep me on track.  I like to prioritize stuff.  All is important but the most important is what is important now.