Penepole Wang says that it takes guts to sell what’s hot and buy what’s not, but it’s the fundamental key to success on the stock market.

The oldest adage in investing is “buy low, sell high.” When’s the last time you pulled that off? Exactly. No need to beat yourself up. Selling high, after all, requires you to pull money out of investments that are doing spectacularly well — a move that’s both counter-intuitive and emotionally painful.

In this particular case, Wang advocates dumping real-estate based investments in favor of Blue Chip stocks like GE and Dell, stocks that have languished for the past five (or more) years. She suggests a few mutual funds to meet these goals.