"how many memorable passwords do you have, i always worry i'll forget some of mine"

I have four: one for each computer I use. Once I'm logged in, I use a password manager for all other passwords. (Except for some sites with weirdly short PW limits, every password I have is at least 32 characters long and sometimes as long as 72, in part because it eliminates the temptation to try to memorize them.)