Confidence with equations

There used to be people on here asking about how do you actually memorize the equations (there are easily over a 100 of them). Answer: by the time you’re ready to write the exam, you wouldn’t have to memorize them. You would just have internalized them and you should be fine. So, now (with 25 days left) how do you feel? Would you be able to calculate off the top of your head anything from quants to corp. finance to FSA? How do you feel? And what did you do to be good at the equations? Thanks!