There are some who say to pick a song: I Got To Get You Out of My Life become IGTGYOOML, then add number and lower case letters over time.
Good luck. Whatever you do, do it soon.
GRC’s | Password Haystacks: How Well Hidden is Your Needle?
GRC’s | Password Haystacks: How Well Hidden is Your Needle?
What are mnemonics? | Learn Language Vocabulary with Mnemonics @ Memorista.com