this Forum is the best place to learn about practical and successful harmonic trading :-)
1. Check out the threads about the patterns, it gives you lots of information and hints regarding the pattern, it's locations, confirmations used, etc, etc. -> Market Geometry & Harmonic Patterns
2. Start your Journal here -> Trading Journals to collect comments and suggestions from more experienced traders.
3. Check out Trading Strategies and Trading Systems to learn about trading methods and trading systems, and ideas for the systems.
this is to start with :-) ... and this will take you to the harmonic trading Advanced level !!!