If you like not having terrible regrets, you are the target audience! I'm still getting the hang of explaining things, sorry ;)
The Eisenhower Matrix is a system for deciding how to spend your time. There are two booleans, which combine into four quadrants.
Here, I made a graph! https://files.catbox.moe/upo2zs.png
Q1: Important and Urgent
Q2: Important, not Urgent
Q3: Not important, but Urgent
Q4: Neither important nor Urgent
I realized a while back that when people talk about their "dreams" in life, they're actually talking about Q2. They're talking about the category of things they want to do "someday", but which, unless they actively make time for, will never happen.
Because, by definition, there is always something more urgent pressing for your attention. Q1 and Q3 "do themselves", in the sense that life will pressure you into dealing with them. There is no real pressure for Q2, except for the occasional "oh my god another year has passed and I have made no progress."
So I strongly urge everyone to figure out what your Q2 is, and to schedule it first thing every morning.
It had its own page, but nothing good lasts on Wikipedia!