The first rule of trading stocks: never look back.

Yesterday I dumped my Marvell stock at a profit. Today, the stock went up another $1.15 during the morning trading. Did I look back and kick myself saying that I should have held for another day? NO.

The first rule of trading is that you never look back upon your trades. You never shoulda coulda. If I was able to look back on all my trades and magically correct them somehow, I would be Warren Buffet by now. I don't even think or talk about how I could have kept the stock for another day or another month and could have made more money. The fact is that I'm not a clairvoyant and I can't see into the future. I'm a trader (or at least trying to be) and I make my decisions based on the market movement and my analysis.

So anytime I hear people talk about how they should have bought this stock or how they should have sold at this or that price, I automatically know that they're a rookie trader. Rookies always talk about how they should have done this or that. I'm not a rookie trader, so I don't look back on past trades and say stuff like "I should have bought this stock at this price." I'm always looking forward towards the next trade.