As James Clear puts it "Do the most important thing first each day and you'll never have an unproductive day." - @JamesClear
Remember that it is not everything that is URGENT that is IMPORTANT. However, consider all IMPORTANT things as URGENT.
First, give priority to the important and urgent things in your life. Then, focus on the important things, even if not urgent. If left attended, they will become urgent at some point. So, don't ignore them.
If there is time, consider dealing with the urgent stuff that may not be important. However, if you can delegate this to someone else, then do so.
For the stuff that's neither important nor urgent, well, why is it on your list?