It's a very tricky thing @trading. If your in experienced, you never can fully tell how long you are to hold a loosing position on a trade. There is a technic and it should be in your setting of stop loss margin and the same applies to take profit margin. No one likes loosing and as such, you tend to hold a loosing position with hope that it would turn back in profit. Eventually, it just might not and you end up loosing more than you can afford to loose.
Always put your stop loss just before the previous lower low at the support level and take profit close to the higher high at the resistance level. Once these places are broken, it signifies a possible break out so, you've just got to love the trade before you make the mistake of loosing more than you could bare.