School Grade: 4th (9 years old)
This character is a combination of 己 a variant of 巳 serpent, and 攵 strike/force. Together they give “drive off serpents,” or “clear an area,” which came to men “reform” by extension. It may be helpful, however, to remember 己 as “self” and use the mnemonic “force oneself to reform.”
Also! I wrote this character with the brush pen according to how it was written in my book, with the end of 己 angling up towards the next stroke. You will, however, often see it written the way I have it in the examples. As far as I am aware, both are acceptable forms.