Don’t memorize them just follow them. After 40 years in aviation, grab your checklist and follow it. When you encounter a situation that no checklist applys too? Do what your instinct tells you to do. It worked for me, some fucked up bullshit situations occurred that there where no checklist or which one do I run first? Yet, I reached up, shut down the malfunctioning system and restored control. How? I don’t know. In all my years of flying I never experienced fear until the event was over. I only followed one rule, taught one rule, evaluated one rule, follow your checklist. Saved my life many times.