Reading an economic calendar
A calendar gives you four things per release: the time, the impact rating, the forecast and the previous figure. The number that moves markets is the surprise — actual against forecast — not the actual figure itself. A terrible number that everyone expected moves very little.
Learn the handful that matter for your instrument. For gold and the dollar that is US CPI, non-farm payrolls, FOMC rate decisions and the press conference that follows them, and to a lesser degree PCE and retail sales. Everything else is noise you can trade through.
Check the calendar before the session, not after a spike. Two minutes at the start of the day tells you which hours are dangerous.
Markets price the forecast in advance. Only the surprise moves price.