........lots of people don't read and digest the Airbus Flight Crew training Manual for the A320. This is a major mistake, as it has vital info.
Much of the (excellent) info. in this thread is in the manual.
The more effort you put into reading it, the more confident you'll feel,
operating the minibus.
Enjoy, and the best advice I can give, is to make a one, or two line note in a notebook, of every small little non-normal item that crops up, and later, read the relevant manual, be it Ops, Fcom,Mel,FCTM, to further increase knowledge.