Something that makes evolution difficult to understand for humans is the vast amount of time that has happened since it started with the formation of the earth. It is difficult to visualize since it is so different from the time spans we are used to. Days, weeks, years, centuries, and even the recorded history of humans are insignificant blips in the 4 1/2 billion history of the earth.
Something I’ve found useful is compressing earth’s existence into one 24 hour day.
Our new ancestor recently found in South Africa would appear in the last minute of the above clock. All human history would be in the last second. Where humans split off from the main ape line is somewhere in the last minute and 15 seconds.