Graduated from Pipsology. Still got question

Beginner Questions
1

I have read all of tutorial from this site and its just terrific to get a total newbie into the Forex world but I have some unanswered question even after 3-4 times rereading all of the tutorial again.

  1. Does Inverted Hammer,Hammer,Shooting Star and Hanging Man have any difference apart from their shape? Is it all qualify as reversal patern generally.

  2. Whats the differences of Fibonacci Retracement and Extension? Both calculate support/resistance level but why is it said extension is for profit taking ?

3.I heard that if you still got money in broker or something that interest going to be charge? Is it true?

  1. There is pivot point, fibonacci, MACD, EMA,SMA, etc. How much indicator should I stick to?

  2. Is Elliot wave theory important for trading?

  3. if example, 5EMA cross 10EMA does it generally mean bullish/bearish or just saying changing in either trend

  4. How to calculate risk:reward ratio?

  5. Do anyone here do carry trade? How to do it in Metatrader for example?

  6. There is currently FX trading station and Metatrader 4. Which one is better?