Some of them all the time, and all of them sometimes.
Realy, you don't need to know all that. Many ways to profit bearish or bullish.
Lots of things can send usd/cad either direction. News has a lot of influence on all the pairs. When the RSI says oversold, Price is at the top of the Bollinger Bands, and the MA's have crossed, the news will still send a pair the agianst the ...
Yes to trading charts backwards. Elliot Waves, Fibonacci Retracements, RSI, and ATR are what I use.