The two most important things I found about ta:
- using range and volatility are the most important things to consider, and
- using simple chart patterns and indicators is a complete epic fail; you need to combine it with market internals (vix, trin, in vs out day) and risk management. Also expect every breakout will be a false breakout and therefore use entries that are not obvious from horizontal support and resistance "dumb money" lines
Remember always, the math is more important than the chart patterns
I would add time of day, within the trading day.