I in Mandarin

• 我 – This is the normal “I” used in modern Chinese. I simply think of a picture of myself, but I try to be as specific as possible, not merely thinking of myself, but actually a picture of myself.
• 余 / 餘 – “I” in classical Chinese. The character also means “in excess of”, so I think of a very old version of myself in an old people’s home. I lack teeth, which is a bit scary, but I have everything else in excess (including years of age). I write this as “old me”if I write mnemonics down.
• 予 –  “I” in classical Chinese. Since this character is similar to 子, I think of myself as I appear in photos from when I was two or three years old. This is “young me” in writing.
• 吾 – “I” in classical Chinese. I think of myself as a mutated monster with five mouths, devouring everything in sight. This is “monster me”.