It would be better to learn the lesson where you are young, especially the hard way. It is much better than doing it when you are over 50. That way you not only lose big money, you also don't have time to recover the loss.
Here, I'd like remind anyone with big balance(>500K) in 401K/403B/Simple IRA, due to the limitation of the investment choices in most of those plans, it is extremely important for rebalancing the portfolio (sell high and buy low). If you just can not pull the trigger, please hire a fanacial advisor to do that for you.
