Stop order

Hi,How can we do if we want to make a stop loss in order to improve the money management?For example if i want to buy Total at 37€ and i want to have a stop loss at 10% under my buying price meaning 33.3€.- Should i Buy Total at 37€ at market price and then after- I sell Total with an order stop at 35.56€ meaning if Total reach this price, abcbourse should automatically lower my portfolio by selling Total at this price.In sum i have 2 transactions.Is it the right process?Thanks for your answer.