Once you found a quality stock, make sure you buy at bargain price to ensure margin of safety. After that you need to accumulate it and let the time run. No need to care the stock market up and down, don’t worry the change of economy, ignore the insider news, just focus on which quality stock to buy and what price to buy. Market crash is opportunity, don’t be fear, buy as many quality stock as possible. Stick to your principles, and you’ll have no regrets!