Oneself
じ, し
None
None
The self radical and self are the same in looks as well as in meaning.
When we need to remember じ we use the word "Jesus."
Who said you should always look at your self before tossing stones (or whatever) at others? Jesus (じ) did. So, make sure you look at your own self before being a jerk.
Currently there are no similar looking kanji which exist in the WaniKani learning system