But you're going to need 5 years of living expenses saved up in after tax money. I. E. Brokerage, Roth IRA contributions, or good old saved up cash.
To all those educating themselves and making good financial plans, good on you. Saddest thing in the world is a 65+ yr old coming back to work because he can't afford not to, or he's got nothing else going on in his life.