buying at the high price

I did have that experiences of buying at high price and now the price has been down a lot. The way I did first of all set up the price cut which means you have to set up how much percentage of the price you want to be down like 10%, 20%. Secondly research and read the news to see the potential and do your own due diligence. if you think the stock down because the market situation, you can do cost average on to the stock in order to put the price average down. last but not least if the stock was down your percentage expect and did your own dd which can not see the potential I cut lost.