some trades are really difficult to watch out for but good for watching trades because this is the only way you will know when a reversal will come and for you to get out of the market. it's good to keep an eye on your trade even though not every time and most traders lose big without using stop loss, and many beginners tend to avoid it by thinking if prices will only bounce back from there onwards. this is not a good idea if you can't watch the old market, or you want to kill your own account of movement for sometimes you can understand the market conditions and also know well where a particular partner takes support and where he gets resistance