Risk tolerance questionnaires lie to you. They ask how you'd feel if your portfolio dropped 20% and you say 'somewhat uncomfortable but I'd stay the course' — because you've never actually experienced it.

True risk tolerance is only visible when your portfolio balance drops $50,000 in a month and you have to decide whether to sell. Most people discover they're more risk-averse in practice than they believed in theory.

A more honest way to assess it: look at what you actually did in 2020 (the March crash) and 2022 (the year-long grind down). If you panic sold or stopped contributing, your actual risk tolerance is lower than your stated one.

The most common mistake I see is people holding more equity than their behavioral risk tolerance supports. Watching your portfolio drop 40% in a 100% equity portfolio and staying the course requires either great emotional discipline or not looking at your balance. If you'd look and sell, a 70/30 or 80/20 allocation that you'll actually hold through a crash is better than a 100/0 portfolio you'll abandon at the bottom.