Would've, could've, and should've!

Would’ve, could’ve, and should’ve are words I constantly hear uttered at the most inopportune of times. Right now I am hearing "I should've pulled out of the market", "I could've shorted the market", and "I would've made a killing". I think these words symbolize optimism, but are often confused with anxiety.
The stock market is the prime example of the effects of fear and greed. We fear not making enough money so we invest into overvalued stocks that have had a great run or are part of a bubble. We fear that the market is too risky so we don’t invest. When we are greedy we invest and are apprehensive to sell when our stocks have grown rapidly. We are greedy when we don’t want to invest in the market and stay in cd’s and treasuries. Fear and greed are emotional drivers that have caused investor losses in both bull and bear markets. The only proven strategy to investing effectively is diversification.
If you are truly fearful and greedy I would suggest you educate yourself on diversification. Investors who have been part of a market downturn in the past, see the market at its current market value as a point of opportunity. Those same individuals have seen the benefits of diversifying their investments and taking advantage of other people’s fears. Are they being greedy? Are they the ones that see the light at the end of the tunnel? What if those words are cues to do something today? What if every time you had that thought you did something for benefit? I think you would be better off. I’m just saying!