I only have two rules:
1. Buy low.
2. Sell high.
Unfortunately, I tend to break the rules often. I hope everyone else does better.
Dude, precisely!
the only question though, is to determine if this the right moment to sell/to buy.
usually if the market is calm it is pretty easy ( study the charts and you should be good in guessing)
but if the market is in storm, well... the risk is high then..