When the market is trending, placing trades that are in the same direction as the trend will give you the highest probability trades.
If the Daily and Weekly charts show a strong bullish trend, you can look for long trades on the lower timeframe charts such as the 12 Hour or 4 Hour.
Conversely, if the Daily and Weekly charts show a strong bearish trend, you can increase your chances of being profitable by looking only for short trades.
To identify the major trend, simply go to the higher timeframe charts such as the Daily, Weekly, or Monthly. If you are scalping on lower timeframes, you may also wish to look at medium timeframe charts like the 12H or 4H to look for the medium term trend.
BirbicatorPRO's Baseline, Momentum Waves, or Dashboard can all help you quickly identify the current trend on each timeframe at a quick glance.