Keep charts current. Preserve your capital. Nothing new ever occurs in the markets. Money cannot be made every day from the market. Back your opinions with cash when they are confirmed by market action.
Markets are never wrong, opinions often are.
A good trade is profitable right from the start. As long as a market is acting right, don't rush to take profits. Never permit speculative ventures to turn into investments. Don't try to predetermine your profits. Never buy a stock because it has a big decline from its previous high, nor sell a stock because it is high priced.