Day trading, Momentum to take a position in day trading, traders will usually take advantage of three things, including:
Candlestick Pattern
Technical Analysis
Volume 
At day trading, I more focus to learn volume and and candle stick.
Technical Analysis is also good to know about market and chart.
Maybe I'm not professional trader, just take this chance to spend my spare time.
Doing spot trading , daily
But will hold if the market goes down.
I think It's simple startegy.