In an overbought/oversold market MACD goes tits up. Volume alone can't be very useful, however using the MFI can go a long way.
The traders who don't use indicators and say "just bar/candlesticks" are lying; they're making a moving average through them and basing it on that. I.e. closes at a low, they'll open to sell etc.
But you'd be stupid to trade without looking for primary & secondary support & resistance lines anyway.
Fib lines are a flawed concept, but they DO work. So many peopple use them that it becomes a fact.
The traders who actually use no indicators ARE using indicitors, but they're using fundamentals not technicals. You'll always make money playing fundamentals, but unless you're a bank or have HUGE ammounts of capital, be prepared to get whipsawed constantly, for HUGE spreads and massive slippage. I've seen 80+ pip slippage before in some cases.
To be a profitable trader you need to know the inner workings of both. Be prepared to read 5000+ pages of the most dry reading material you've ever known.
Look, when it comes to forex there aren't any easy ways to do it. You need to invest real money, no demo account crap. Trust me, even if it's only $200-$500, you'll get a hell of a buzz and quickly realise your weak points. I traded for *years* on a demo making consistant profits, but as soon as i switched to a real account, it was a whole different ball game. No excuses, NOTHING will prepare you. Not even trading other peoples money etc.
Expect to spent about 3 years of looking at charts, investing about $6k~ (which you'll lose) and trying probably 50 or so "tried and tested strategies" (which won't work). You need you own style and your own way of working.
When i was big into forex i was making a very lucrative income, however 3 months later the credit cruch hit, markets went to shit and my strategy failed miserably. Lost it all. I was doing it for fun and it wasn't about the money so i didn't mind.
Maybe i'll get back into it in a couple of years.